David Barzilai, MD PhD

David Barzilai, MD PhD

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Clinician focused on prevention/longevity; curates aging science and protocols.

Medical Training Favors Memorization, Undermining True Understanding
SocialApr 20, 2026

Medical Training Favors Memorization, Undermining True Understanding

The Paradox of Knowledge: Why Medical Students Know More But Understand Less 💯👨‍⚕️ 👉"This paradox stems from an educational system that prioritizes rote memorization and exam performance over critical thinking and conceptual understanding. 👉Information overload, protocol-driven learning, and exam-focused curricula contribute to...

By David Barzilai, MD PhD
Ageing Biomarkers Compared Across Humans and Primates
SocialApr 20, 2026

Ageing Biomarkers Compared Across Humans and Primates

Biomarkers of ageing of humans and non-human primates https://t.co/Cav2bIwrLX "A comprehensive overview of ageing biomarkers in humans and non-human primates, divided into three hierarchical levels: cellular, tissue and organism..." https://t.co/tT3JXBnj0S

By David Barzilai, MD PhD
Low Testosterone Linked to Vascular Aging via Mitochondrial Dysfunction
SocialApr 20, 2026

Low Testosterone Linked to Vascular Aging via Mitochondrial Dysfunction

Endothelial Sirtuins and Mitochondrial Function Are Associated With Testosterone Status: Implications for Accelerated Vascular Aging in Middle-Age and Older Men With Low Testosterone https://t.co/pQna8PVe1t

By David Barzilai, MD PhD
Mediterranean Diet and Exercise Key for Mood Health
SocialApr 20, 2026

Mediterranean Diet and Exercise Key for Mood Health

The role of diet and physical activity in managing anxiety and depression: A scoping review 👉 “Mediterranean diet is the most mapped pattern for depressive outcomes…. Physical activity shows the largest evidence base for mood and cognition….” https://t.co/f5Cv1ofgjc https://t.co/bMA3GrMCTq

By David Barzilai, MD PhD
Intense Interval Exercise Boosts Panic Disorder Treatment
SocialApr 20, 2026

Intense Interval Exercise Boosts Panic Disorder Treatment

Brief intermittent intense exercise as interoceptive exposure for panic disorder: a randomized controlled clinical trial “ These findings support the incorporation of structured exercise-based IE into PD treatment programs…” https://t.co/vUfchaSqzr https://t.co/UH9aMF120R

By David Barzilai, MD PhD
Boosting Mitochondrial NAD+/NADH Extends Life, Eases Alzheimer’s
SocialApr 20, 2026

Boosting Mitochondrial NAD+/NADH Extends Life, Eases Alzheimer’s

Extension of Lifespan and Amelioration of Alzheimer's Disease Phenotypes by Genetic Manipulation of Mitochondrial NAD+/NADH Ratio https://t.co/m8K1Tm9sIR https://t.co/SU85G9FsgW

By David Barzilai, MD PhD
Zombie Immune Cells Linked to Fatty Liver, Inflammation, Aging
SocialApr 20, 2026

Zombie Immune Cells Linked to Fatty Liver, Inflammation, Aging

UCLA scientists identify zombie immune cells as a driver of fatty liver disease, inflammation and aging https://t.co/28Ql5er4kb https://t.co/IoAD5I6AJr

By David Barzilai, MD PhD
Nature Exposure Linked to Lower Self-Reported Pain
SocialApr 20, 2026

Nature Exposure Linked to Lower Self-Reported Pain

Toward an understanding of how and why nature exposure is associated with reduced self-reported pain https://t.co/jPONqce8Sd

By David Barzilai, MD PhD
Strong Glutes Extend Longevity and Midlife Independence
SocialApr 20, 2026

Strong Glutes Extend Longevity and Midlife Independence

This Muscle Is the Unsung Hero of Longevity Building your butt muscles will help you stay injury-free and independent in midlife and beyond. https://t.co/m6NODA1e2P https://t.co/vq6a8HFntM

By David Barzilai, MD PhD
Combined NMN and CD38 Inhibitor Rejuvenates Aging Muscles
SocialApr 20, 2026

Combined NMN and CD38 Inhibitor Rejuvenates Aging Muscles

Double-Pronged NAD Preservation: Delaying Cellular Senescence and Initiating Musculoskeletal Regeneration https://t.co/bnkkn0xblj Scheme 1: A novel synergistic drug combination (N + A) consisting of an NAD+ precursor (NMN) and an NAD+ consumption (CD38) inhibitor (API) promotes musculoskeletal regeneration in aging.

By David Barzilai, MD PhD
Obesity Linked to One‑Tenth of Infection Deaths Worldwide
SocialApr 19, 2026

Obesity Linked to One‑Tenth of Infection Deaths Worldwide

Adult obesity and risk of severe infections: a multicohort study with global burden estimates 👉”with evidence suggesting that approximately one in ten infection-related deaths worldwide might be attributable to obesity...” https://t.co/sVIG5ivcV8

By David Barzilai, MD PhD
Nrf2 Activation Offers Therapeutic Promise, Yet Requires Caution
SocialApr 19, 2026

Nrf2 Activation Offers Therapeutic Promise, Yet Requires Caution

Nrf2 Activation in Inflammatory Diseases: A Review of Natural and Synthetic Modulators 🔑 Mechanistic insights and preclinical and clinical evidence on the role of Nrf2 in inflammatory diseases and evaluates the therapeutic potential of its key activators. “ The nuclear factor...

By David Barzilai, MD PhD
Consistent Sleep Cuts Mortality Risk More Than Duration
SocialApr 19, 2026

Consistent Sleep Cuts Mortality Risk More Than Duration

Sleep regularity was a stronger predictor of all-cause mortality than sleep duration 👉 Higher sleep regularity was associated with a 20%–48% lower risk of all-cause mortality. https://t.co/AO6rthJcdU https://t.co/em0u1eKZiA

By David Barzilai, MD PhD
DASH and Anti‑inflammatory Diets Lower SCD Risk, Boost Cognition
SocialApr 19, 2026

DASH and Anti‑inflammatory Diets Lower SCD Risk, Boost Cognition

Dietary Patterns and Indicators of Cognitive Function “healthy diets, exemplified by the DASH diet for blood pressure control and diets with lower hyperinsulinemia and inflammation potentials, were associated with a lower SCD risk and better cognitive function” https://t.co/Km7DxqqtJa

By David Barzilai, MD PhD
Rejuvenation Stems From Removing Old Blood, Not Young Transfusions
SocialApr 19, 2026

Rejuvenation Stems From Removing Old Blood, Not Young Transfusions

Munger was right to “avoid crazy” regarding young blood transfusions. While animal data is compelling, evidence shows rejuvenation (in mice) comes mostly from removing old blood components to dilute age-elevated factors. 🩸

By David Barzilai, MD PhD
Early Detection Tools Exist—Yet Prostate Cancer Screening Lags
SocialApr 19, 2026

Early Detection Tools Exist—Yet Prostate Cancer Screening Lags

Prostate cancer: a PSA on PSA We have the tools to catch prostate cancer early—why aren’t we using them? https://t.co/w8lN6rfNmO https://t.co/dapKLiI4aX

By David Barzilai, MD PhD
MIND Diet Slows Brain Atrophy Over Ten Years
SocialApr 19, 2026

MIND Diet Slows Brain Atrophy Over Ten Years

Adherence to the MIND diet and longitudinal brain structural changes over a decade: evidence from the Framingham heart study offspring cohort “In this prospective cohort study, greater adherence to the MIND diet was associated with slower brain structural atrophy, particularly...

By David Barzilai, MD PhD
U.S. BMI Trend Shows Obesogenic Environment Reaches Saturation
SocialApr 19, 2026

U.S. BMI Trend Shows Obesogenic Environment Reaches Saturation

The secular trend of the body-mass-index of the U.S.-born population and the rise of an obesogenic environment, 1882–2021 "...The obesogenic environment has likely reached a saturation point..." https://t.co/r8UnMinOBS https://t.co/mAy5kcZSac

By David Barzilai, MD PhD
Refined Diets Damage Amygdala Memory in Aging Rats
SocialApr 19, 2026

Refined Diets Damage Amygdala Memory in Aging Rats

The aged amygdala’s unique sensitivity to refined diets, independent of fat or sugar content: A brain region and cell type-specific analysis 👉 “Refined diets impaired amygdalar memory in aged rats, regardless of fat or sugar…” https://t.co/GfWLeVTb9z https://t.co/xLCIniZq5B

By David Barzilai, MD PhD
Science Shows Seed Oils Aren’t the Health Villains Claimed
SocialApr 19, 2026

Science Shows Seed Oils Aren’t the Health Villains Claimed

How Seed Oils Became Controversial—And What the Science Really Says A food scientist debunks the vilification of seed oils on social media and explains what research says about them. https://t.co/3vkvSpmBod | @sciam https://t.co/MuRLtmBi7U

By David Barzilai, MD PhD
Regular Resistance Training Boosts Muscle Function, Hypertrophy, Performance
SocialApr 19, 2026

Regular Resistance Training Boosts Muscle Function, Hypertrophy, Performance

American College of Sports Medicine Position Stand. Resistance Training Prescription for Muscle Function, Hypertrophy, and Physical Performance in Healthy Adults: An Overview of Reviews 👇 FIGURE 2: Schematic representation of the modes of RT and the outcomes that are positively influenced...

By David Barzilai, MD PhD
AI Avatars Become the New Fake Supplement Influencers
SocialApr 18, 2026

AI Avatars Become the New Fake Supplement Influencers

An Amish Avatar and an A.I. Monk Are Pitching Supplements on Social Media “Influencers have long hawked supplements on platforms like Instagram and TikTok. Increasingly, the influencers are fake…” 🤖 https://t.co/1aifYzZbY2

By David Barzilai, MD PhD
Whey Protein Boosts Weight Loss in Obesity, Review Finds
SocialApr 18, 2026

Whey Protein Boosts Weight Loss in Obesity, Review Finds

Effectiveness of Whey Protein Supplementation in Weight Loss Interventions for Patients with Obesity: A Systematic Review https://t.co/aWeSqmYfFL

By David Barzilai, MD PhD
Medical Schools Commit to Boost Nutrition Training for Doctors
SocialApr 18, 2026

Medical Schools Commit to Boost Nutrition Training for Doctors

FACT SHEET: Secretary Kennedy and Secretary McMahon Celebrate Medical School Commitments to Increase Nutrition Training for Future Doctors https://t.co/mLHvkJhPkB

By David Barzilai, MD PhD
Exploring Abundant Futures with Longevity Visionary David Wood
SocialApr 18, 2026

Exploring Abundant Futures with Longevity Visionary David Wood

A Roadmap to Abundant Futures: A Conversation with David Wood @dw2 is well worth your time. I have a lot of respect for him, having collaborated together, and his work with @LongevityEVF alongside @aubreydegrey, another great visionary, speaks for itself https://t.co/Jr4k0g9HnB https://t.co/qwgshYdPXT

By David Barzilai, MD PhD
Doctor Says 100 Daily Jumps Offer Limited Benefits
SocialApr 18, 2026

Doctor Says 100 Daily Jumps Offer Limited Benefits

Is jumping 100 times every day good for you? Doctor breaks down TikTok trend A new TikTok fitness trend involves jumping 100 times each day, and a doctor has explained whether this viral exercise routine actually delivers health benefits https://t.co/8LhdDx4ei2 https://t.co/jstsaJ3hte

By David Barzilai, MD PhD
Overweight Diabetics in Jeddah Use More Outpatient Care
SocialApr 18, 2026

Overweight Diabetics in Jeddah Use More Outpatient Care

Body Mass Index Impact on Health Care Utilization Among People with diabetes in Jeddah, Saudi Arabia "Regression models revealed that overweight [OR = 1.43] and obese patients [OR] utilized more outpatient services..." https://t.co/HfR5ltQTYS

By David Barzilai, MD PhD
Optimized Type 2 Diabetes Care Boosts Health and Savings in Spain
SocialApr 18, 2026

Optimized Type 2 Diabetes Care Boosts Health and Savings in Spain

Estimating the Clinical, Quality-of-Life and Economic Impact of Optimized Management of Type 2 Diabetes Patients in Spain https://t.co/L3QB4MJf57 https://t.co/pot0usHX7f

By David Barzilai, MD PhD
Implausible Apple Cider Vinegar Weight‑Loss Study Retracted
SocialApr 18, 2026

Implausible Apple Cider Vinegar Weight‑Loss Study Retracted

Implausible Apple Cider Vinegar Weight Loss Study Retracted When a trial has results that defy basic biology, it’s reasonable to be skeptical. @PharmacistScott https://t.co/ahEkiEmP7l https://t.co/yVyazUwXou

By David Barzilai, MD PhD
Sweetener and Plastic Microplastics Trigger Worm Obesity
SocialApr 18, 2026

Sweetener and Plastic Microplastics Trigger Worm Obesity

Sucralose and PMMA Microplastics Synergistically Induce Obesity with Altered Locomotion and Metabolism in Caenorhabditis elegans https://t.co/TExtjah4cV

By David Barzilai, MD PhD
Protein‑rich Breakfast
SocialApr 18, 2026

Protein‑rich Breakfast

Big breakfast diet composition impacts on appetite control and gut health: a randomized weight loss trial in adults with overweight or obesity "The HPWL diet was superior to the HFWL diet for suppressing subjective appetite (P=0.003). The faecal microbiota analysis showed beneficial...

By David Barzilai, MD PhD
PFAS Exposure Linked to Faster Biological Aging in Men
SocialApr 18, 2026

PFAS Exposure Linked to Faster Biological Aging in Men

Aging process could accelerate due to 'forever chemicals' exposure, study finds Higher concentrations of PFAS chemicals were associated with faster biological aging in men of certain age groups https://t.co/ZClEw0Gj1p https://t.co/tYBTJTmlt9

By David Barzilai, MD PhD
Exercise Activates Hypothalamic SF1 Neurons, Boosting Endurance
SocialApr 18, 2026

Exercise Activates Hypothalamic SF1 Neurons, Boosting Endurance

Exercise-induced activation of ventromedial hypothalamic steroidogenic factor-1 neurons mediates improvements in endurance 👉 “ These results demonstrate that exercise-induced hypothalamic SF1 neuron activity is essential for the coordination of physiological improvements following exercise training.” https://t.co/qLowm6sETh

By David Barzilai, MD PhD
Warmer Waters Accelerate Fish Life Histories, Shorten Lifespans
SocialApr 18, 2026

Warmer Waters Accelerate Fish Life Histories, Shorten Lifespans

Mixed Support for the Temperature-Size Rule in Wild Freshwater Fishes "...We also found evidence that faster life histories in warmer environments are associated with reduced lifespans..." https://t.co/oJtqRUD2o6

By David Barzilai, MD PhD
Genetic IL6R Blockade Shows No Impact on Disease or Longevity
SocialApr 18, 2026

Genetic IL6R Blockade Shows No Impact on Disease or Longevity

Genetic interleukin-6 receptor blockade, chronic disease risk, and longevity: results from the women’s health initiative "Genetic IL6R blockade was not associated with incident chronic-disease risk, including invasive cancer and longevity, in a large, ethnically diverse cohort of postmenopausal women. No significant...

By David Barzilai, MD PhD
Nocebo's Power Equals Placebo in Health Education
SocialApr 17, 2026

Nocebo's Power Equals Placebo in Health Education

Nocebo deserves as much airtime as placebo in patient education and provider training It matters as much for diets: tell someone a food is harmful and their body will often cooperate, which "confirms" the belief and pushes them to cut foods...

By David Barzilai, MD PhD
Digital Tools Boost Seniors' Health, Independence, and Home Life
SocialApr 17, 2026

Digital Tools Boost Seniors' Health, Independence, and Home Life

The “ELDERDES” model: how older adults' adoption of digital environment solutions improves residential experiences, health outcomes, and enables independent living https://t.co/jSDPgnP5Ax https://t.co/ZZEfaWZWOF

By David Barzilai, MD PhD
Claude Self‑diagnoses Its Own Tool Error, Hinting at Autonomous AI
SocialApr 17, 2026

Claude Self‑diagnoses Its Own Tool Error, Hinting at Autonomous AI

This is quite fascinating. Claude gave me 3 options A, B, and C for a possible approach and left A completely blank. It states below the blank "The tool rendered one. Here are the two other strategic angles to choose...

By David Barzilai, MD PhD
Childhood NAD+ Deficiency Triggers Lifelong Muscle Aging
SocialApr 17, 2026

Childhood NAD+ Deficiency Triggers Lifelong Muscle Aging

Early-life NAD+ deficiency programs skeletal muscle aging by sustained suppression of hyaluronic acid synthesis beginning in childhood https://t.co/K0MAkv7hIB https://t.co/eRCOesGwL5

By David Barzilai, MD PhD
OpenAI and InSilicoMeds Partnership Promises Significant Growth
SocialApr 17, 2026

OpenAI and InSilicoMeds Partnership Promises Significant Growth

A collaboration between @OpenAI and @InSilicoMeds has great upward potential. Would you be open to exploring this @sama ?

By David Barzilai, MD PhD
Blood Test Identifies Molecules Predicting Short‑term Survival
SocialApr 17, 2026

Blood Test Identifies Molecules Predicting Short‑term Survival

New Blood Test Signals Who is Most Likely to Live Longer, Study Finds Research finds tiny molecules in blood strongly predict short‑term survival in older adults https://t.co/8bv3I5CCXE https://t.co/IdZ5eYOmwe

By David Barzilai, MD PhD
AI Boosts PhD Work, Yet Threatens Core Skills
SocialApr 17, 2026

AI Boosts PhD Work, Yet Threatens Core Skills

AI and the PhD student: friend or foe? Graduate students increasingly use artificial-intelligence tools to draft, code and search... but many fear it could erode the very skills a doctorate is meant to build. https://t.co/b8cdoCI6Bh https://t.co/scTkfsXuCW

By David Barzilai, MD PhD
Stable Weight Maintenance Predicts Longer Lifespan in Mice
SocialApr 17, 2026

Stable Weight Maintenance Predicts Longer Lifespan in Mice

Longitudinal analysis of body weight reveals homeostatic and adaptive traits linked to lifespan in diversity outbred mice "We observed that the ability to maintain stable body weight, despite fluctuations in energy intake and expenditure, was positively associated with lifespan in an...

By David Barzilai, MD PhD
Super‑agers Defy Aging: Brains Stay 25‑year‑old Sharp
SocialApr 17, 2026

Super‑agers Defy Aging: Brains Stay 25‑year‑old Sharp

‘Harvard Thinking’: How super-agers keep their brains young Experts break down ‘biological contradiction’ of a 65-year-old with the memory of a 25-year-old — and what that means for the rest of us https://t.co/29qpNudp1J https://t.co/X951FiSfiS

By David Barzilai, MD PhD
Women Experience Faster Tau Buildup and Cognitive Decline
SocialApr 17, 2026

Women Experience Faster Tau Buildup and Cognitive Decline

Women show greater tau buildup and faster cognitive decline than men in Alzheimer's https://t.co/5GKfzXZPSo https://t.co/8L9wxDsFAp

By David Barzilai, MD PhD
High SHBG Increases Sarcopenia Risk; Free Hormones Protect
SocialApr 17, 2026

High SHBG Increases Sarcopenia Risk; Free Hormones Protect

Endogenous sex hormones, sex hormone-binding globulin, and muscle health: insights into sarcopenia and sarcopenic obesity from the Women’s Health Initiative "Among postmenopausal women, higher SHBG concentrations at baseline were associated with lower lean body mass and a higher odds of sarcopenia,...

By David Barzilai, MD PhD
Perceived Sleep Quality Beats Objective Data in Reducing Worry
SocialApr 17, 2026

Perceived Sleep Quality Beats Objective Data in Reducing Worry

Better Sleep Can Reduce Worry and Rumination in Older Adults People’s perceptions of their sleep also proves to have stronger associations with their worry and rumination than objective sleep quality monitored with a device. https://t.co/rgAxrILC6E https://t.co/JpHwzEczjH

By David Barzilai, MD PhD
7‑8 Hours Nightly Cuts Type 2 Diabetes Risk
SocialApr 17, 2026

7‑8 Hours Nightly Cuts Type 2 Diabetes Risk

This Is How Much Sleep You Need to Lower Your Type 2 Diabetes Risk https://t.co/UI9VyQiv3a https://t.co/ac9eBXPIBu

By David Barzilai, MD PhD
Review Panel Finds Anti‑amyloid Alzheimer Drugs Offer Little Benefit
SocialApr 17, 2026

Review Panel Finds Anti‑amyloid Alzheimer Drugs Offer Little Benefit

Medical Review Group Questions Usefulness of Some Alzheimer’s Drugs Group says anti-amyloid treatments don’t offer noticeable benefits https://t.co/Z9tRQquyZX

By David Barzilai, MD PhD