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Sony Suffers $765 Million Loss Over Bungie as Marathon Continues to Backslide
Marathon's failure to deliver has had a massive impact on Sony and Bungie, with a $765 million impairment loss being recorded.
Brain health is shaped by the interaction of lifestyle, environment and social conditions
Why do some people remain mentally sharp into old age, while others experience cognitive impairments earlier in life? Two recent studies involving Forschungszentrum Jülich provide new answers to this ...
Everyday task may help detect early dementia signs before diagnosis, study finds
Scientists have discovered that a simple writing test could detect cognitive impairment in older adults before more serious symptoms develop.
Marathon and Destiny developer Bungie underperformed last year, causing a $765 million impairment loss for PlayStation
Marathon and Destiny 2 continue to be a loss leader for Bungie and PlayStation.
Volvo Construction Equipment announces closure of Rokbak business
As part of a long term strategic shift and due to the unsustainable profitability of the Rokbak business Volvo Construction Equipment (Volvo CE) will close its Rokbak business and concentrate resources on its portfolio of other hauling solutions. The business had revenues of SEK 1.0 bn in 2025 and was loss-making. The closure of the business will negatively impact operating income by about SEK 0.7 billion in the Construction Equipment segment in Q1 2026 and will be reported as an adjustment. About SEK 0.4 billion refers to non-cash items with the majority related to goodwill impairment.
Sony forecasts lower gaming business sales amid memory price surge
STORY: Sony forecast lower sales in its gaming business due to a memory chip price surge.The tech giant said Friday annual sales in the segment would fall 6% to $28 billion.It also blamed lower hardware sales as its PlayStation 5 ages.Although the Japanese company said it expects gaming profit to rise 30%.That's due to higher first-party software sales and no repeat of the impairment loss it recorded a year earlier.Sony has been praised by analysts in recent years for its transformation into an entertainment powerhouse.But markets have grown concerned about the impact of AI on its business, while Sony also faces a perceived lack of growth catalysts.Both factors have weighed on shares in recent months.Investors are also concerned about the impact of a memory-chip price surge.As well as disruption to supply chains from the Iran war on margins at electronics manufacturers.The firm said it sold 1.5 million PS5 consoles in the fourth quarter, which was a 46% drop on the same period a year earlier.Looking ahead, the PS5 is expected to receive a major boost from the launch of the delayed "Grand Theft Auto VI."The game is due to release in November.Sony said in February it had secured the minimum quantity of memory needed to manage the year-end shopping season. Sony also said it sees higher profits at its pictures and chips units but a lower profit at its music business.The group reported operating profit for the year ended March rose 13.4% to $9.2 billion - below analyst forecasts. Meanwhile, rival Nintendo said it expects to sell 16.5 million units of its Switch 2 console in the financial year ending March 2027.It also projects profit to rise 2.7% to $2.36 billion.But, like with Sony, investors are concerned about the possible impact of a memory price surge on margins.
Vanderbilt Health’s Mónica Santisteban to be honored by the American Heart Association
Mónica Santisteban, PhD, will be honored this fall by the American Heart Association Council on Hypertension for research that has helped define how high blood pressure can contribute to cognitive impairment and Alzheimer’s disease.
National Australia Bank's first-half cash earnings miss estimate
National Australia Bank reported weaker-than-expected first-half cash earnings on Monday as a higher credit impairment charge and a charge related to its software capitalisation policy offset robust growth in business lending volume.
BP warns of $4bn-$5bn impairment charge in energy transition business
UK oil major attributes charge to gas and low carbon energy unit
Hidden driving danger when edible cannabis and alcohol mix
Using cannabis edibles and alcohol together may make drivers far more impaired than either substance alone, according to new research from Johns Hopkins. Even more concerning, common field sobriety tests often failed to detect the cannabis-related impairment.
Sony Backs ‘Marathon’ Even After $765 Million In Bungie Impairment Losses
Sony's recent earnings revealed an enormous $565 million in impairment losses against Bungie, but Sony is still pressing forward with Marathon.
BP Flags $5 Billion Write-Down in Low-Carbon Segment, Warns of Weak Oil Trading
The warning and impairment—in its gas and low-carbon energy segment—cap off a tough year for the industry.
Thomas S. Langner, Who Linked Social Ills to Mental Illness, Dies at 102
He helped lead what became known as the Midtown Manhattan Study, which showed that mental impairment is highly correlated with low socioeconomic status.
Eastlake science students make district history
Three Eastlake High School students made Sweetwater Union High School District history this year when they became the first students from the district to qualify for the International Science and Engineering Fair, an international competition that brings together some of the top high school researchers from around the world. Ronald Wyatt, Giles Del Priore and Ihan Sung advanced to the competition after successful runs at regional and state science fairs. Sung went a step further, placing fourth in the chemistry category at ISEF. The students were recognized on Aug. 10 during a Sweetwater Union High School District board meeting at the district office in Chula Vista.For Wyatt and Del Priore, recent Eastlake graduates, the journey began with a shared concern about dementia and the challenges faced by families caring for loved ones with memory impairment. Their engineering project, “Design and Evaluation of a Behaviorally Grounded Caregiver-Governed AI Companion for Individuals with Memory Impairment,” earned the Sweepstakes Award at the Sweetwater District STEM Fair and first place in its division at the Greater San Diego Science and Engineering Fair. The project explored whether Artificial Intelligence could provide companionship and support while helping reduce stress for people with dementia and their caregivers. “Our inspiration came from personal experience. Both of us have seen family members and loved ones affected by dementia, and we’ve witnessed how overwhelming the caregiving process can be,” Wyatt said. Del Priore said the students also wanted to address the high cost of third-party health care services while creating something that could potentially help their own families as well as people elsewhere. The students developed an AI system designed with safeguards intended to prevent misinformation reinforcement, emotional escalation and unsafe responses. In 240 controlled trials involving memory, identity, agitation and neutral scenarios, they said the system consistently prevented harmful incorrect reinforcement while using context-aware silence, de-escalation and caregiver verification. The project required the students to combine Artificial Intelligence, psychology, neuroscience and human-computer interaction. For Del Priore, one of the biggest technical challenges was getting the AI companion to communicate verbally with a patient. Hardware limitations required the students to collaborate with multiple Python libraries for speech-to-text and text-to-speech functions while keeping the cost of the companion low. “For us, the biggest challenge was translating complex behavioral and cognitive care principles into a functioning AI system,” Wyatt said.Qualifying for ISEF was a milestone that student expected. The international competition proved to be another milestone. “Competing at ISEF was an incredible experience and unlike anything we’ve ever done before,” Del Priore said. “Being surrounded by some of the most talented young researchers from around the world was both inspiring and motivating.” He said the experience stood out because of the emphasis on collaboration, innovation and scientific discovery. “The most memorable part was seeing how people from completely different backgrounds and disciplines approached solving real-world problems with creativity and passion,” he said. The students also credited teachers and mentors who supported their work. Del Priore said his sophomore-year AP Physics teacher, Dr. Price, was particularly influential. “Through all of my personal and academic struggles, Dr. Price always believed in me,” Del Priore said. “All of his faith in me really molded me into the person I am today and helped create my love for science even through tough times.” Wyatt is continuing his education at UC Santa Cruz, where he plans to study biomolecular engineering and bioinformatics, with an interest in research involving Artificial Intelligence, biology and health care. Del Priore plans to double major in chemistry and accounting. Sung, a rising Eastlake senior, qualified for ISEF after winning first place in the Engineering: Energy, Materials & Transport category at the Greater San Diego Science and Engineering Fair and first place in chemistry at the California Science and Engineering Fair. His project, “Renewable Ammonia Electrochemical Synthesis by Glow Discharge with an Iron-Based Catalyst,” involved a device he designed and engineered to produce renewable ammonia, with potential applications in fertilizer production and energy storage. Sung became interested in the project after considering the relationship between food insecurity and fertilizer costs. His system uses plasma to break apart nitrogen molecules so they can interact with hydrogen and form ammonia. At ISEF, Sung competed against more than 1,700 students from 65 countries and earned fourth place in chemistry. “I am proud to become one of te first students in the district to qualify for ISEF because this milestone can inspire others in the district to attain similar goals,” Sung said.
People with diabetes may have another reason to protect their cardiovascular health
Better cardiovascular health, measured using Life’s Essential 8, was associated with a lower risk of mild cognitive impairment among people with diabetes after accounting for genetic susceptibility. Associations with dementia varied by genetic risk, while higher LE8 scores were also linked to greater gray matter volume and lower white matter hyperintensity volume.
Efzimfotase alfa demonstrated improvements in bone health in treatment-naïve pediatric patients with hypophosphatasia achieving median difference of 1.67 vs placebo in RGI-C Score at week 25 in MULBERRY Phase III trial
Positive results from the MULBERRY Phase III trial showed that efzimfotase alfa (ALXN1850), an investigational enzyme replacement therapy, demonstrated a statistically significant and clinically meaningful improvement in bone health in children (2 to
Science behind sobriety field tests
Albany High students in Elizabeth Lopatniuk's health classes participated in a dynamic lesson about the effects of alcohol on the body. After taking an in-depth look at the science behind why and how alcohol slows the activities of the brain and central nervous system, students learned about how a variety of factors can impact the level of intoxication and how blood alcohol concentration can impair one's ability to operate a motor vehicle. Albany High Student Resource Officer Nick Schuler led students through an overview of field sobriety tests that are routinely performed during a traffic stop when an officer suspects a driver may be under the influence of alcohol. Officer Schuler explained the three elements of a physical sobriety test, including walking a straight line with turns and checks for motor skill patterns, standing on one foot to check for balance and following a moving stimulus with eyes only to check for Horizontal Gaze Nystagmus (HGN), an involuntary, rhythmic jerking of the eyes as they look to the side. Students volunteered to try walking a straight line both with and without alcohol impairment simulation goggles. Officer Schuler pointed out particular behaviors and patterns that would lead to a failed field sobriety test during the simulation. As prom and graduation festivities approach, we applaud our Albany High staff for empowering our Falcons with valuable lessons so they can make wise and safe choices.
Glucosamine, a popular joint supplement, linked to faster Alzheimer’s progression
A large health-record analysis found that glucosamine use was associated with a 25% higher likelihood of mild cognitive impairment progressing to dementia. Lab experiments suggest the popular joint supplement may intensify an abnormal sugar-tagging process in the Alzheimer’s brain, although researchers say clinical trials are needed to determine whether it actually causes harm.
ACC highlights importance of cognitive impairment, frailty when treating older heart patients
In a new report, the American College of Cardiology emphasized five key ways to enhance care for elderly patients presenting with cognitive and frailty issues.
Many cancer survivors have impairments that make using mobile devices and websites difficult
Cancer survivors often experience cognitive, visual or physical challenges that hinder software use. Better designs can help.
The Big Holes in Wearable Heart Rate Variability And Readiness Scores
On September 9th, Apple announced it was revamping its Apple Watch Health Sensing System, rolling out a Readiness score (0 to 10), and increasing the frequency of heart rate variability (HRV) outputs 24-fold. This can be viewed as upping its competition with various other consumer wearable sensors. These “readiness scores” as a composite of multiple metrics, with heart rate variability (HRV) being front and center for most. The majority of Americans are now using wearable sensors, which equates to well over 100 million adults. HRV and Readiness scores are increasingly being marketed as a measurement of autonomic nervous system health, a digital marker for future disease, a clock for biological age, and a holistic metric to promote healthspan and even longevity. (Apple also introduced a new longevity tab and “Health Age”.) None of this has been proven. In this edition of Ground Truths I am going to review what we know about heart rate variability and readiness scores. Heart Rate Variability HRV is the variation in normal heart cycle timing. The variability of the heart rate, the barely perceptible millisecond changes in time between consecutive heart beats (see R-R intervals in the Figure below, left panel), is due to interplay between the sympathetic and parasympathetic (vagal nerve) inputs. Distinct from heart rate, individuals with the same heart rate can have very different HRVs. It is a rough reflection of the autonomic nervous system (ANS) activity, inadequate to say whether a person’s ANS function is abnormal. For more than three decades, heart rate variability (HRV) has been measured and several studies have found an association of low HRV and clinical outcomes, particularly a link with higher all-cause and cardiovascular mortality. There have also been less well established links of low HRV to risk of early cognitive impairment, dementia, mental illness, Type 2 diabetes and substance abuse. An important reminder is that HRV is a surrogate marker without any established cause-and-effect relationship. If you increase your HRV, that doesn’t mean it will improve health outcomes. In fact, there is no hard evidence for that. All that work linking to health outcomes was done with electrocardiogram (ECG) derived HRV. Now, in the era of consumer wearables, this is getting assessed differently, by optical pulse (yes, the lights you see) plethysmography (PPG) or what is called pulse rate variability (PRV). They are not the same, as shown below (right panel) and only concordant when the delay between the ECG and pulse is kept constant, which basically means at rest. I should mention there’s also what I will call MPV, a mattress mechanical movement sensor, a derived heart rate variability, that companies like Eight Sleep use, even further away from directly measuring HRV. HRV has not one uniform measurement but many different types of quantification, such as RMSSD, the magnitude of difference between successive R-R intervals of normal sinus beats (N-N) or SDNN, the standard deviation of NN intervals, both in milliseconds. SDNN is one of the so-called frequency domain HRVs (others are LF, HF, LF/HF). Different wearable sensors use different metics; Apple has relied on SDNN and nearly all of the others use RMSSD, which is generally considered the more accurate metric. There’s also the different length of time measured, such as for a matter of minutes, all day, or an overnight’s sleep. Short measurements are especially problematic since they don’t capture enough of respiratory modulation and other factors that influence HRV. Share Ground Truths How well does HRV correlate with PRV? There are very limited studies, especially independently done. One that is commonly cited was conducted by Air Force researchers in only 13 healthy adults assessing Oura ring 3 and 4, Whoop 4.0, and Garmin Fenix 6 and showed a correlation coefficient of 0.88 to 0.97 and a mean absolute percentage error from 6 to 10%. The correlation is not a perfect 1.0, but there’s at least a fairly high level of correlation. HRV is supposed to increase during the night due to takeover of the parasympathetic nervous system, and higher during deep sleep. A recent example of my 1 week, all day “HRV,” and one during sleep is shown below. As you can see, the N of 1 data are inconsistent for the same days from different sensors (Oura, AppleWatch, Fitbit Air, and Eight Sleep) by patterns, absolute numbers, and comparison with prior days and weeks. The largest study in over 8 million Fitbit users (the old version, not Google Fitbit Air, introduced in May 2026) gives you a sense of the effect of age, sex, and the 2 different main HRV (here PRV) metrics, with RMSSD on the left and SDRR (=SDNN) on the right below. That study, from data collected in 2018, is a major outlier, since all the more recent ones are tiny with respect to sample size. Many of the companies have not had independent evaluation of their HRV, such as Eight Sleep, but have published a low standard error on their website. There are some other published studies on the correlation between HRV and PRV, but they are all small and only in healthy adults. A scoping review emphasized the lack of study in underrepresented individuals, including the aged, people of color (which affects the PPG signal), and individuals who are underweight or obese. Add the typical adult age 60 plus with one or more chronic diseases. For example, one study in over 900 adults found poor correlation of HRV and PRV, non-uniformly underestimated across many chronic diseases (cardiovascular, endocrine, neurological, respiratory, and others), concluding PRV is “an invalid surrogate for HRV.” A recent systematic review of 43 studies comparing HRV and PRV found reasonable pooled absolute standardized error (HRV as gold standard) but only 10 of the studies provided quantitative synthesis in ideal conditions. Their main conclusion was similarly cautious: “PPG-derived HRV [PRV] should not be regarded as universally interchangeable with ECG-derived HRV across all devices, populations, and recording contexts.” Factors Affecting HRV and PRV That gets me to the long list of factors that affect HRV (and PRV) besides the device, the type of measurement (RMSSD, SDNN or others), the person’s signal, the sensor site, the duration of data capture, if weighting by sleep stage is used, how artifact is processed and corrected. And this list is not complete!: Oura puts out data from their community of users (who input data) on what affects their overnight HRV. The factors currently provided are: no alcohol (increase 8%), melatonin (increase 2%, float tank (increase 2%), wine (decrease 4%), and party (decrease 14%) in overnight HRV. Must be some big parties! Subscribe What is a PRV measurement good for? It has been falsely characterized as an index of “autonomic balance” and a specific indicator of stress. A 2018 review of the studies available for HRV and its relationship to stress, not using any of the current wearables, found that stress can lower HRV. But so can many other factors. The non-specificity of the signal, indexed to the table above, is striking. Evidence from a UK Biobank study of over 46,000 participants with actual HRV looked at genetically predicted HRV, a genetic risk score, that failed to show the expected HRV-mortality link, indicating that _HRV is likely not causa_l, but rather a reflection of person’s physiologic state. A review of consumer wearable HRV data from 5 longitudinal studies showed that nighttime PRV was not associated with perceived stress, and surprisingly higher HRV, in the largest cohort (N=717 participants), was correlated with higher stress. An Oura ring cohort of 525 first-year college students found a link between overnight PRV and perceived stress, but that was also seen with resting heart rate, sleep, and respiratory rate. Several very small studies have examined the relationship of HRV and athletic injuries or guiding training with mixed, and predominantly negative results. HRV biofeedback training with paced breathing had no significant effect on reducing stress or raising HRV, as demonstrated with sham controlled trials. When HRV for multiple days showed a decline in conjunction with body temperature, the Oura ring published data for prediction of Covid. The WHOOP company sponsored an observational study, published in 2026, of 30,000 users for 72 weeks, without a control group, that reported reduced alcohol intake (5.8 % points) by self-report. That doesn’t tell us much, and particularly about the merits of HRV for behavioral change. If you use the same device and conditions as longitudinal trends for multiple (at least 2-3) weeks that may be the one way to get something useful from the measurements. Data for overnight sleep with minimal motion and using RMSSD is the best proxy for real HRV. The reason to look at trends rather than any given night is that it more likely represents something, even though you won’t know with certainty what the “it” is. Keep in mind there are no data, no peer-reviewed evidence, to show that HRV fluctuation in-person has any correlation with health outcomes. Share Readiness Scores These are proprietary scores that integrate different metrics for each of the wearables: no algorithms have been disclosed. They are unvalidated against health outcomes. In a review of 14 composite health scores of readiness and recovery, HRV contributed 86% to the scores, followed by reading heart rate (79%), physical activity and sleep duration (both at 71%). That review noted the substantial variability in measurement protools and lack of standardization. Sleep staging is notoriously inconsistent and inaccurate by these sensors, which adds further to the HRV uncertainties for what the scores, which use sleep stage data, mean. Only resting heart rate has been shown consistently across devices to be extremely accurate. I’ve made a Table to summarize what we know about which metrics are included, the scores, any peer-reviewed studies that compared the readiness score with health outcomes, and the corresponding (if any, NA-not available) citation. You will note that some companies do not use the term “readiness," such as WHOOP for recovery, and Garmin, which has 2 different scores, one of which is Body Battery. Eight Sleep uses the term “Fitness Score.” They all include HRV; Apple includes a new metric they call “Recovery HRV” which among other components uses 7-days of sleep, but it is unclear what this means or how it is differentiated from other scores (there are clearly no data for outcomes). We have no knowledge of how the different components are weighted or whether any of these scores are better than resting heart rate, HRV alone, physical activity, or any other single metric. Since none of these are standardized, they are not interchangeable, so if you get a 90 for Oura that has no relationship to a 90 on a Google Fitbit Air. Notably, the company can update its algorithm for readiness score at any point without notification to device users. Without any useful evidence of actionability for these scores or established relationship with health outcomes, it is hard to make a case for their value. At the Apple recent announcement they showed their Readiness score (0-10) on the watch (Figure below) but there are no published data on this score, not even on their website. It’s available only on their new Watch Series 12 or Ultra 4 [of course, ;-)]. That exemplifies the problems with these scores, lack of data and evidence for being meaningful to promote health. Perhaps the best study (which isn’t saying much) is the WHOOP Recovery for golfer performance, because it did correlate with an objective outcome, even though there was no control group and the authors were all from the company. Among the 389 pro golfers, an absolute 10-per cent point increase in Recovery score was associated with about 0.5 fewer strokes per round. But that’s hardly a health outcome! WHOOP is also conducting a study in over 2,700 runners to see if their recovery score will be linked to less injuries and improved performance, but that is not yet published and has no control group or randomization. Putting This in Context For two decades I’ve been enthusiastic about the potential for digital health and particularly wearable biosensors. Over the years, we’ve seen some great progress for their ability to promote physical activity and accurately detect atrial fibrillation (the first FDA cleared deep learning AI for consumers). That work was the subject of rigorous research. But there are holes in the data and evidence for other metrics. One notable one is the “VO2 max” story that I wrote about earlier this year. At that time many subscribers asked me to cover heart rate variability, which I finally got to here. When I dived into the research and publication for HRV and readiness scores, I expected to find at least some that were of high quality and demonstrated their utility by linkage to health outcomes. To my surprise, I found none. The wearable sensor measurements for HRV (PRV) are, for the most part, accurate, but that validation work has only been done in small studies of healthy adults and does not take into account the long list of factors, from the device, software side, and the user side, that affect HRV measurements. Moreover, this metric chiefly relies on optical sensing and, as we have learned for heart rate PPG sensing, may be less accurate in people of color. Keep in mind that all of the health outcome association evidence comes from ECG-derived HRV; none are from wearable sensor data. I will repeat the key point: there's no peer-reviewed evidence to show that in-person HRV fluctuation—or efforts to raise your HRV— has any correlation with health outcomes. For those of you who look at your HRV on awakening, or even 2+ week trends of it being low, I hope this context helps to relieve any anxiety. Yes, low HRV (not PRV) has been shown to increase risk of some diseases as summarized above. But efforts to raise your HRV—a surrogate metric— has not been established for improving any health outcomes. HRV does not have any evidence of causality (the genetic evidence actually goes against this possibility). In this summary, I have not included data for other wearable sensors such as Polar, Samsung, Withings, Suunto, Amazfit, Coros, Ultrahuman, or additional mattress sensors. These are beyond my first-hand experience, and as far as I know from my in-depth review none have any peer-reviewed published data that differ from the 6 sensors I’ve reviewed here. From the points I’ve gone over above, we’re not ready for readiness scores. Besides being proprietary, they are predominantly based on metrics that have their own issues. It’s compounding the problem, like building a house without a solid foundation that has never undergone a rigorous inspection, and then selling it. Like I mentioned for PRV, you can look at trends over weeks rather than any single day, to get a handle, but even that may not be helpful. There’s simply no evidence that these scores meaningfully relate to health outcomes. I’d emphasize they might, but that requires doing prospective or randomized studies to prove it. None exist. There’s great promise for HRV/PRV utility_. For example**,**_ Prof Maiken Nedergaard, who discovered the brain glymphatics that are essential in eliminating metabolic waste products from the brain during sleep, has posited that HRV could be a non-invasive marker for neuromodulator oscillations, brain-body regulatory circuits, and brain clearance. That would be extremely useful, but like everything else on HRV and readiness scores it requires solid research and validation. The lay media isn’t helping much to get the story straight. Earlier this year The Economist published a piece entitled “The most useful indicator of your overall health” which ordained HRV as an “accumulated stress score.” That’s akin to the false assertion about VO2max: “V02 max is the singular most powerful marker for longevity.” As I’ve summarized here, that is not established. The fact is that so many things can lower HRV, including physical exercise (especially an intense workout), reduced sleep quality, stress, the list above, no less the device, signal, and software. Whatever fluctuations observed have not been correlated with any health outcome. Sadly, “datamaxxers” are widely using HRV and readiness scores that have never been validated to mean anything. We already know that for some people using the sensors for sleep metrics, it can induce “orthosomnia,” an obsession to get high sleep quality, with associated high levels of anxiety. In an experiment done by a company to promote sleep quality for its employees, “For those employees who did use the trackers, many reported feeling perfectly rested until their tracker told them they had had a terrible night. Others were told that they had slept like a baby when they had actually been lying awake worrying about the quality of their sleep. “ The same problem can result from preoccupation with HRV or readiness scores, with anxiety that would lead to further reduction in both. It you are using a wearable like >100 million American adults, it’s OK to look at these data, but contextualized with the major caveats reviewed here. If you are one to require evidence that HRV or readiness scores are linked to health outcomes, you may not even want to look. The companies make it hard to turn them off! Let me end with the companies that make and sell wearables. Apple’s doubling down on HRV (24-fold more reporting and heart rate very 5 seconds) and introduction of a Readiness score tells us that consumers have bought into these metrics and they are joining the club. However, all of this is occurring with a backdrop of tens millions of users, claims about the data that are not backed up by adequate evidence, marketing way out in front of whatever limited data exists, and not being transparent about their readiness score algorithms. The companies can well afford to do the research that is needed to connect these metrics with health outcomes show, once and for all, that increasing HRV or using readiness scores promotes our health. If they believed and invested in the products they are selling, we’d not be in this position of not knowing. That’s essentially where we are with HRV and readiness scores. Perhaps someday this will change and we’ll have good reason to embrace them. NB: I wrote this post. No AI. I have no conflicts of interest with any of its content. Loading... Ground Truths has 215,000 subscribers from every US state and 214 countries. There are over 300,000 followers of Ground Truths so more than 90,000 folks who can easily convert to be free subscribers. Your subscription to these free essays and podcasts makes my work in putting them together worthwhile. If you’re not a subscriber, please join! If you found this interesting PLEASE share it! Share Ground Truths The proceeds from all voluntary paid subscriptions go to support our summer internship program. It enabled us to accept and support a record number of 62 summer interns that joined us in 2026! These are high school, college and medical students selected from thousands of applicants. We couldn’t do this expanded program without the funds coming in through Ground Truths. Thank you!
Brain health: Alzheimer's 2026 new report on cognitive impairment & dementia in Tennessee
An estimated 7.4 million Americans age 65 and older are now living with clinical dementia due to Alzheimer's disease, according to a newly released report from
PlayStation records $765m impairment loss from Bungie as operating income falls 41.6% in Q4
Full year operating income for Sony's Games and Network Services rises 12% while net sales remain flat
Vascular Contributions to Cognitive Impairment and Brain Health
This paper updates the 2011 Vascular contributions to cognitive impairment and dementia scientific statement.
A hidden brain signal may reveal Alzheimer’s long before diagnosis
Researchers have discovered a brain activity pattern that can predict which people with mild cognitive impairment are likely to develop Alzheimer’s disease. Using a noninvasive brain scanning technique and a custom analysis tool, they detected subtle changes in electrical signals tied to memory processing years before diagnosis. The findings point to a new way of spotting Alzheimer’s early—by listening directly to how neurons behave.
Towards better vision: WHO South-East Asia regional meeting on eye health
The WHO South-East Asia Regional Meeting on Eye Health was convened to address the substantial and persistent burden of avoidable vision impairment in the Region. South-East Asia accountsfor nearly one third of the world’s blind and visually impaired population, with cataract, uncorrected refractive error, and diabetic retinopathy contributing to more than 90 percent of cases. The meeting responded to the need for coordinated action to achieve the 2030 global targets for effective cataract surgical coverage and effective refractive error coverage, and to advance implementation of the Regional Action Plan for Integrated People Centred Eye Care. It provided a platform for reviewing progress, identifying system gaps, and strengthening country pathways to accelerate universal access to quality eye care.
Health records link ADHD to more than fourfold higher risk of later cognitive impairment
A new study led by University of Pittsburgh School of Medicine researchers finds that adults with attention-deficit/hyperactivity disorder (ADHD) face a significantly higher risk of developing dementia ...
BP Flags $1 Billion Writedown From Gas and Low Carbon Business
BP Plc said it expects to book impairments of $1 billion related to its gas and low carbon energy business in the second quarter, as the energy giant refocuses on oil and gas.
Telefonica Posts Wider Net Loss, Revenue Rises; Dividend Declared
The result partly reflects around 255 million euros in impairments and losses from disposed assets in the quarter, including other noncash goodwill impairments.
Emory’s Jane Chung receives American Nurses Foundation award for work with older adults in tech-supported health management
Associate professor Jane Chung the recipient of the 2026-28 Collaborative Alliance Nursing Outcomes Research Fund, supporting her work helping older adults with mild cognitive impairment and multiple chronic conditions manage their health at home.
What ‘super movers’ can teach us about healthier brains
“Super movers” who walked faster than normal were about half as likely to develop cognitive impairment, a new study found. Here’s what it may mean for healthy aging.
Embracer Group announces plans to spin-off Fellowship Entertainment
Structural change announced alongside Q4 results showing a 24% net sales decline and $765.2 million non-cash impairment
Algeria eliminates trachoma as a public health problem
The World Health Organization (WHO) reports validating Algeria as having eliminated trachoma as a public health problem. This makes Algeria the 29th country globally to achieve this significant milestone. "Algeria’s elimination of trachoma is a historic triumph that connects the past, present, and future of public health, and is rooted in a century-long commitment," said Dr Tedros Adhanom Ghebreyesus, WHO Director-General. "This milestone proves that with sustained political will and on-the-ground leadership from committed health professionals, we can eliminate neglected tropical diseases and build a healthier, more resilient future for all." For decades, Algeria implemented the WHO-recommended SAFE strategy to eliminate trachoma. These activities included provision of surgery to treat the late blinding stage of the disease (“trachomatous trichiasis”, TT), conducting mass administration of antibiotic treatment, carrying out public awareness campaigns to promote facial cleanliness and personal hygiene as well as improvement in access to water supply and sanitation. Trachoma is the first neglected tropical disease to be eliminated in Algeria. Trachoma is a disease of the eye caused by infection with the bacterium Chlamydia trachomatis. It is a public health problem in 30 countries and is responsible for the blindness or visual impairment of about 1.9 million people. Blindness from trachoma is difficult to reverse. Based on November 2025 data, 97 million people live in trachoma endemic areas and are at risk of trachoma blindness. Infection spreads through personal contact (via hands, clothes, bedding or hard surfaces) and by flies that have been in contact with discharge from the eyes or nose of an infected person. With repeated episodes of infection over many years, the eyelashes may be drawn in so that they rub on the surface of the eye. This causes pain and may permanently damage the cornea. In 2024, 87,349 people received surgical treatment for advanced stage of the disease, and 44.4 million people were treated with antibiotics. Global antibiotic coverage in 2024 was 39%. Outbreak News Today is a reader-supported publication. To receive new posts and support my work, consider becoming a free or paid subscriber. Subscribe
PTSD, Health-Related Social Needs Together Increase Cognitive Risks Significantly in Veterans
A recent study asked a question critically important to VHA clinicians: Are post-traumatic stress disorder (PTSD) and health-related social needs (HRSNs) associated with incident mild cognitive impairment, Alzheimer’s disease and Alzheimer’s disease-related dementias among U.S. veterans?
Dementia risk more than quadruples among adults with common disorder
Adults with ADHD had more than four times the risk of dementia or mild cognitive impairment, a University of Pittsburgh study of 187,000 people found.
Glucosamine, a popular joint supplement, linked to faster Alzheimer’s progression
A large health-record analysis found that glucosamine use was associated with a 25% higher likelihood of mild cognitive impairment progressing to dementia. Lab experiments suggest the popular joint supplement may intensify an abnormal sugar-tagging process in the Alzheimer’s brain, although researchers say clinical trials are needed to determine whether it actually causes harm.
Popular joint supplement glucosamine linked to faster Alzheimer’s progression
A major study suggests glucosamine, a popular supplement for joint pain, could be linked to faster progression from mild cognitive impairment to Alzheimer’s disease. Researchers found a 25% higher likelihood of developing dementia among glucosamine users and uncovered biological clues that may explain why.
Science behind sobriety field tests
Albany High students in Elizabeth Lopatniuk's health classes participated in a dynamic lesson about the effects of alcohol on the body. After taking an in-depth look at the science behind why and how alcohol slows the activities of the brain and central nervous system, students learned about how a variety of factors can impact the level of intoxication and how blood alcohol concentration can impair one's ability to operate a motor vehicle. Albany High Student Resource Officer Nick Schuler led students through an overview of field sobriety tests that are routinely performed during a traffic stop when an officer suspects a driver may be under the influence of alcohol. Officer Schuler explained the three elements of a physical sobriety test, including walking a straight line with turns and checks for motor skill patterns, standing on one foot to check for balance and following a moving stimulus with eyes only to check for Horizontal Gaze Nystagmus (HGN), an involuntary, rhythmic jerking of the eyes as they look to the side. Students volunteered to try walking a straight line both with and without alcohol impairment simulation goggles. Officer Schuler pointed out particular behaviors and patterns that would lead to a failed field sobriety test during the simulation. As prom and graduation festivities approach, we applaud our Albany High staff for empowering our Falcons with valuable lessons so they can make wise and safe choices.