David Barzilai, MD PhD

David Barzilai, MD PhD

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

Believing You Exercised Boosts Health, Mindset Matters
SocialApr 22, 2026

Believing You Exercised Boosts Health, Mindset Matters

Mind-set matters: Why Thinking You Got a Workout may Actually Make You Healthier 👉 “ “Whether the change in physiological health was brought about directly or indirectly, it is clear that health is significantly affected by mind-set…” https://t.co/gVlr8q4jzL

By David Barzilai, MD PhD
Alzheimer's Drugs Show Minimal Benefit, Review Reveals Deeper Issues
SocialApr 22, 2026

Alzheimer's Drugs Show Minimal Benefit, Review Reveals Deeper Issues

Alzheimer’s drugs offer little benefit, major review finds – and the reasons go deeper than the science https://t.co/cnMPAEQumY https://t.co/wtg8llquON

By David Barzilai, MD PhD
Blue Light Worsens Obesity via Fat Mitochondrial Damage
SocialApr 22, 2026

Blue Light Worsens Obesity via Fat Mitochondrial Damage

Blue light exposure exacerbates obesity in high-fat diet-fed mice by inducing mitochondrial dysfunction in the white adipose tissue "Collectively, our results suggest that BL may target the adipose tissue, trigger oxidative stress, suppress oxidative phosphorylation, impair mitochondrial function, and exacerbate obesity." https://t.co/5flPOv2iDS

By David Barzilai, MD PhD
SIRT6 Controls Brain Protein Homeostasis, Slowing Aging
SocialApr 22, 2026

SIRT6 Controls Brain Protein Homeostasis, Slowing Aging

SIRT6 Regulates Brain Protein Balance and Aging https://t.co/prPtswc8kh @bengurionu Further reading (primary source) @Aging_Cell: SIRT6 Regulates Protein Synthesis and Folding Through Nucleolar Remodeling https://t.co/w1SfUiUxg4 https://t.co/TA9UjYkxvN

By David Barzilai, MD PhD
Lilly's Retatrutide Achieves 28.7% Weight Loss, Higher Dropouts
SocialApr 21, 2026

Lilly's Retatrutide Achieves 28.7% Weight Loss, Higher Dropouts

Lilly’s triple G agonist boasts 28.7% weight loss in Phase III trial Lilly is investigating retatrutide in seven other Phase III trials, which are due to read out in 2026. 👨🏻‍⚕️“Discontinuation rates due to adverse events were 12.2% and 18.2% with retatrutide...

By David Barzilai, MD PhD
NMN Eases Liver ER Stress, Resets Circadian Rhythm
SocialApr 21, 2026

NMN Eases Liver ER Stress, Resets Circadian Rhythm

Nicotinamide mononucleotide attenuates hepatic endoplasmic reticulum stress and modulates circadian rhythms in young mice with diet-induced obesity https://t.co/mXbwdQlAzt https://t.co/iQxPG0NKYf

By David Barzilai, MD PhD
Justin Rebo's KindBio Grows Organs On Demand
SocialApr 21, 2026

Justin Rebo's KindBio Grows Organs On Demand

The Man Growing Organs On Demand Justin Rebo, KindBio and their fantastic sacks 🔗https://t.co/ed4bZbZV0T @Justin_Rebo https://t.co/nCffjjaqJH

By David Barzilai, MD PhD
Diet Can Reverse Phosphatidylcholine‑driven Mitochondrial Aging
SocialApr 21, 2026

Diet Can Reverse Phosphatidylcholine‑driven Mitochondrial Aging

Aging-associated decline of phosphatidylcholine synthesis is a malleable trigger of natural mitochondrial aging "a previously unrecognized natural driver of mitochondrial decline in aging that is malleable by dietary interventions." https://t.co/jICV37bT1N https://t.co/DxBCO7WXJa

By David Barzilai, MD PhD
Coffee Regularly Improves Mood, Cuts Anxiety, Enhances Memory
SocialApr 21, 2026

Coffee Regularly Improves Mood, Cuts Anxiety, Enhances Memory

Regular consumption of coffee ‘significantly’ boosts mood and reduces anxiety Benefits were also recorded in non-caffeinated coffee, found to improve learning and memory https://t.co/vWQOtWxObh https://t.co/iPzyyxbe2W

By David Barzilai, MD PhD
High Sodium Accelerates Memory Decline in Older Men
SocialApr 21, 2026

High Sodium Accelerates Memory Decline in Older Men

Higher sodium intake is associated with episodic memory decline in cognitively unimpaired older males: A 6-year longitudinal study https://t.co/8snYRP7sRR https://t.co/kDhs9b2Y8s

By David Barzilai, MD PhD
High‑Intensity Training Linked to Greater Brain Atrophy in Seniors
SocialApr 21, 2026

High‑Intensity Training Linked to Greater Brain Atrophy in Seniors

🤔This study followed older adults for 9 years and found that those assigned to long-term high‑intensity interval training (HIIT) actually had slightly more hippocampal and thalamic atrophy than controls who just followed national physical activity guidelines, while higher baseline fitness...

By David Barzilai, MD PhD
APOE Ε4 Predicts Early Cognitive Decline in Midlife Adults
SocialApr 21, 2026

APOE Ε4 Predicts Early Cognitive Decline in Midlife Adults

APOE ε4 and Accelerated Cognitive Decline Among Cognitively Healthy Middle-Aged and Older Adults 🗣️” In this study, APOE ε4 carrier status was associated with early cognitive decline, highlighting midlife risk awareness and lifestyle interventions, while non-APOE polygenic risk may require longer...

By David Barzilai, MD PhD
Nicotinamide Riboside Blocks Lasting Mitochondrial Damage Post‑asphyxia
SocialApr 21, 2026

Nicotinamide Riboside Blocks Lasting Mitochondrial Damage Post‑asphyxia

Long-term region-specific mitochondrial respiration impairment after perinatal asphyxia is prevented by the NAD⁺ donor nicotinamide riboside: A real-time organotypic metabolic profiling approach https://t.co/ZGyAxcnNAC https://t.co/w0VJkAmlHT

By David Barzilai, MD PhD
Celastrol Disrupts Hsc70‑Bim to Boost Longevity, Reduce Fibrosis
SocialApr 21, 2026

Celastrol Disrupts Hsc70‑Bim to Boost Longevity, Reduce Fibrosis

Celastrol Targets Hsc70-Bim Interaction as a Novel Senolytic to Extend Lifespan and Mitigate Organ Fibrosis https://t.co/Iv51QlhH5l

By David Barzilai, MD PhD
Centenarians Defy Immunosenescence, Boost Geroscience Insight
SocialApr 21, 2026

Centenarians Defy Immunosenescence, Boost Geroscience Insight

Biological age and immunosenescence in Colombian centenarians “These findings challenge the notion of immunosenescence in centenarians and highlight the value of translational research in geroscience.” https://t.co/e63NgGmmzL

By David Barzilai, MD PhD
Group Coaching Boosts Mental Health in Seniors
SocialApr 21, 2026

Group Coaching Boosts Mental Health in Seniors

Community as Medicine: A Qualitative Study of How Group Health Coaching and Social Connection Improve Mental Well-Being in Older Adults https://t.co/U8mo1sYgt1 @MDPIOpenAccess https://t.co/2HCt6wBBSm

By David Barzilai, MD PhD
Time‑restricted Eating Matches Calorie Restriction for PCOS Weight Loss
SocialApr 21, 2026

Time‑restricted Eating Matches Calorie Restriction for PCOS Weight Loss

Time-restricted eating for body weight management in women with polycystic ovary syndrome: a randomized controlled trial “Our results show that in women with PCOS, TRE induced greater weight loss than the controls and was comparable to that achieved with daily CR” https://t.co/fqogoSQpkd

By David Barzilai, MD PhD
Resistance Training Cuts Fat and Boosts Grip Strength
SocialApr 21, 2026

Resistance Training Cuts Fat and Boosts Grip Strength

Exercise, nutrition, physical agent therapy in older adults with sarcopenic obesity: a systematic review and network meta-analysis RT can reduce BF% while simultaneously improving grip strength, representing an effective management strategy for sarcopenic obesity. https://t.co/p0wR2R5M1E

By David Barzilai, MD PhD
Irregular Bedtimes Double Risk of Major Cardiac Events
SocialApr 21, 2026

Irregular Bedtimes Double Risk of Major Cardiac Events

Sleep timing irregularity in midlife: association with incident major adverse cardiac events and cardiovascular disease mortality over a 10-year follow-up 🫀Individuals with irregular bedtimes had a 2-fold higher risk of MACEs compared to those with regular bedtimes Irregular sleep midpoints? Also a...

By David Barzilai, MD PhD
Tenofovir Alafenamide Cuts Biological Age in Adults
SocialApr 21, 2026

Tenofovir Alafenamide Cuts Biological Age in Adults

An FDA-Approved Tenofovir Alafenamide-Based Antiretroviral Therapy Reduces Biological Age in Healthy Adults: First Human Proof-of-Concept for Retrotransposon-Targeted Gerotherapeutics 💫 https://t.co/FFvTmJv2zv https://t.co/DHHQ18nAmy

By David Barzilai, MD PhD
Gene Therapy Works Best for Deaf Children Aged 5‑8
SocialApr 20, 2026

Gene Therapy Works Best for Deaf Children Aged 5‑8

AAV gene therapy for autosomal recessive deafness 9: a single-arm trial 🌟“Gene therapy for congenital deafness has shown promising results in children but lacks data in older populations… . An age-dependent therapeutic effect was observed, with optimal outcomes in 5- to...

By David Barzilai, MD PhD
Excess Energy Resistance Drives Aging; Lifestyle Lowers It
SocialApr 20, 2026

Excess Energy Resistance Drives Aging; Lifestyle Lowers It

The energy resistance principle 💡Hypothesis and framework by @MitoPsychoBio & colleagues ⚡️ 👉 “Energy resistance (éR) is the fundamental property that enables transformation, converting into useful work the unformed energy potential of food-derived electrons fluxing toward oxygen. 👉 Although éR is required to...

By David Barzilai, MD PhD
Higher Muscle Strength Cuts Mortality Risk in Elderly Women
SocialApr 20, 2026

Higher Muscle Strength Cuts Mortality Risk in Elderly Women

Muscular Strength and Mortality in Women Aged 63 to 99 Years 👉 “this study of ambulatory older women, greater muscular strength was associated with lower mortality even when controlling for accelerometer-measured PA and sedentary time, walking speed, and systemic inflammation.” https://t.co/xi913FibKy

By David Barzilai, MD PhD
Garlic-Derived DAS Outperforms Metformin, Extending Mouse Lifespan
SocialApr 20, 2026

Garlic-Derived DAS Outperforms Metformin, Extending Mouse Lifespan

👉 “Chronic treatment with DAS (found in garlic 🧄) freshly added to the diet weekly revealed geroprotective effects, since it extended lifespan and improved metabolic homeostasis, locomotor function, and relevant cognitive parameters in wild-type male mice fed with an STD....

By David Barzilai, MD PhD
Combine Meds and Lifestyle for Equitable Hypertension Control
SocialApr 20, 2026

Combine Meds and Lifestyle for Equitable Hypertension Control

Healthy Lifestyle After Hypertension—A Call to Action 💡Integrate antihypertensive medication use and lifestyle modification to deliver more effective and equitable population-level hypertension management and cardiometabolic disease prevention. https://t.co/wENgycQ8hz

By David Barzilai, MD PhD
Modern Bodies Face a Silent Energy Crisis
SocialApr 20, 2026

Modern Bodies Face a Silent Energy Crisis

Fuel for thought 👉 ”A quiet energy crisis may be unfolding within modern bodies…” and brain 👨🏻‍⚕️🧠 🔗 https://t.co/19h7kfdhNK 🗣️@HanCritchlow

By David Barzilai, MD PhD
Teen Stress Can Permanently Rewire Brain, Boosting Mental Illness Risk
SocialApr 20, 2026

Teen Stress Can Permanently Rewire Brain, Boosting Mental Illness Risk

Teen stress may permanently rewire the brain, raising mental illness risk "The findings help explain why mental health conditions like depression and schizophrenia often trace back to stressful experiences during youth..." https://t.co/wVALCMTE11 @EarthDotCom https://t.co/LToEke4GVL

By David Barzilai, MD PhD
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