David Barzilai, MD PhD

David Barzilai, MD PhD

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

Vitamin D and Fasting Show Promise for MASLD Treatment
SocialMar 23, 2026

Vitamin D and Fasting Show Promise for MASLD Treatment

Therapeutic effects of vitamin D and intermittent fasting on metabolic associated steatotic liver disease in rats "These findings support their potential as complementary, non-pharmacological strategies for MASLD management and warrant further translational investigation." https://t.co/n4BtHrrcOU

By David Barzilai, MD PhD
Only Seven Proven Longevity Compounds After Massive Mouse Trials
SocialMar 23, 2026

Only Seven Proven Longevity Compounds After Massive Mouse Trials

7 Drugs. 30,000 Mice. 20 Years. The Only Longevity Compounds With Real Evidence. https://t.co/BzdoDZeicb @agingroy https://t.co/uM5QMpIAS6

By David Barzilai, MD PhD
Time‑restricted Feeding Curbs Early Liver and Colon Cancer in Rats
SocialMar 23, 2026

Time‑restricted Feeding Curbs Early Liver and Colon Cancer in Rats

The effects of time-restricted feeding on early phases of carcinogenesis in rat liver and colon https://t.co/hZQUZAwXV5

By David Barzilai, MD PhD
Stem Cell Dose Boosts Walk Test, Cuts Frailty
SocialMar 23, 2026

Stem Cell Dose Boosts Walk Test, Cuts Frailty

Randomized phase 2b dose-escalation trial of stem cell therapy with laromestrocel for aging frailty 🌟Performance on the 6-minute walk test improved in a dose-response fashion 🌟Improved 6-minute walk test distance correlated with patient-reported outcomes 🌟The percentage of study subjects classified as frail decreased...

By David Barzilai, MD PhD
Single Stem Cell Dose Boosts Strength, Reverses Frailty
SocialMar 22, 2026

Single Stem Cell Dose Boosts Strength, Reverses Frailty

Stem cell therapy shows promise for reversing aging-related frailty in new clinical trial 🗣️A clinical trial reports that a single dose can significantly improve physical strength and key signs of aging in older adults with frailty. https://t.co/5mw5r64imb https://t.co/uI88QpTEIa

By David Barzilai, MD PhD
Allogeneic Stem Cells Safely Boost Function in Frail Adults
SocialMar 22, 2026

Allogeneic Stem Cells Safely Boost Function in Frail Adults

Allogeneic Mesenchymal Stem Cells Ameliorate Aging Frailty: A Phase II Randomized, Double-Blind, Placebo-Controlled Clinical Trial “Treated groups had remarkable improvements in physical performance measures and inflammatory biomarkers, both of which characterize the frailty syndrome. Given the excellent safety and efficacy...

By David Barzilai, MD PhD
Lifestyle Program Slows Aging and Boosts Function in Frail Seniors
SocialMar 22, 2026

Lifestyle Program Slows Aging and Boosts Function in Frail Seniors

A Multidomain Lifestyle Intervention Is Associated With Improved Functional Trajectories and Favorable Changes in Epigenetic Aging Markers in Frail Older Adults: A Randomized Controlled Trial https://t.co/8Ex1caVyLp

By David Barzilai, MD PhD
Routine Clinical Aging Clocks Show Limited Trustworthiness
SocialMar 22, 2026

Routine Clinical Aging Clocks Show Limited Trustworthiness

Are Aging Clocks Based on Routine Clinical Indicators Trustworthy and Applicable? A Systematic Review and Critical Appraisal https://t.co/JU53JV0gnv

By David Barzilai, MD PhD
Mendelian Randomization Fails When Premises Are Flawed
SocialMar 22, 2026

Mendelian Randomization Fails When Premises Are Flawed

When sophisticated models meet questionable premises Mendelian randomization is a powerful tool—but not when you’re asking genes to answer the wrong question https://t.co/LATYa4xWcz https://t.co/rWhB5oJvgi

By David Barzilai, MD PhD
Fatigue May Signal Intrinsic Capacity in Seniors
SocialMar 22, 2026

Fatigue May Signal Intrinsic Capacity in Seniors

The Impact of Fatigue on Health, Function, and Survival Between Ages 70 and 100 "Our findings highlight the clinical importance of recognizing fatigue by health care professionals throughout the entire aging life span and raise the possibility that fatigue may serve...

By David Barzilai, MD PhD
Building Social Infrastructure for the Coming AI Explosion
SocialMar 22, 2026

Building Social Infrastructure for the Coming AI Explosion

Agentic AI and the next intelligence explosion “The question is not whether intelligence will become radically more powerful, but whether we will build the social infrastructure worthy of what it is becoming.” https://t.co/zRikc7hzGi https://t.co/mqFYKypBIb

By David Barzilai, MD PhD
SGLT2 Inhibitors Boost Survival in Frail Seniors
SocialMar 21, 2026

SGLT2 Inhibitors Boost Survival in Frail Seniors

Use of SGLT2 Inhibitors in Frail Older Adults is Associated with Increased Survival: A Retrospective Study https://t.co/tsJ5qJLBap https://t.co/4EvBWDftJ4

By David Barzilai, MD PhD
Henagliflozin Shows Potential Anti‑Aging Effects in Diabetes
SocialMar 21, 2026

Henagliflozin Shows Potential Anti‑Aging Effects in Diabetes

Effect of henagliflozin on aging biomarkers in patients with type 2 diabetes: A multicenter, randomized, double-blind, placebo-controlled study 🔎"Our results suggest that henagliflozin may exert anti-aging effects by influencing multiple pathways, including the IGF-1 system, glucose metabolism, the immune system, and...

By David Barzilai, MD PhD
AI Race Promises Fully Automated Personal Concierges
SocialMar 21, 2026

AI Race Promises Fully Automated Personal Concierges

The Trillion Dollar Race to Automate Our Entire Lives The AI sprint is hurtling toward a world where anyone can build personal concierges to do everything from executive presentations to March Madness brackets https://t.co/J8oZoFhnuJ https://t.co/U3Y7IWqfPX

By David Barzilai, MD PhD
Frailty and Inflammation Extend Geriatric Unit Stays
SocialMar 21, 2026

Frailty and Inflammation Extend Geriatric Unit Stays

Frailty and inflammation predict prolonged stay in post-emergency geriatric units: a retrospective cohort study https://t.co/92P3HSm6LS

By David Barzilai, MD PhD
Exercise Boosts Quality of Life in Mid‑to‑Late Adulthood
SocialMar 21, 2026

Exercise Boosts Quality of Life in Mid‑to‑Late Adulthood

Physical exercise and health-related quality of life in mid- to late-adulthood: a multi-group chain-mediation analysis https://t.co/vd6yqa45rx

By David Barzilai, MD PhD
Endometriosis Impairs Egg Quality—Strategies Boost Longevity
SocialMar 20, 2026

Endometriosis Impairs Egg Quality—Strategies Boost Longevity

Endometriosis and Oocyte Quality: Morphological Alterations, Developmental Competence, and Modifiable Strategies for Reproductive Longevity https://t.co/I2ZrtJkguK https://t.co/LkH3LXzkcg

By David Barzilai, MD PhD
Spotting Evidence-Based Longevity Clinics vs Marketing Hype
SocialMar 20, 2026

Spotting Evidence-Based Longevity Clinics vs Marketing Hype

One of the questions I get asked most often is how to tell the difference between a longevity clinic built on evidence and one built on marketing. It's a question that deserves a honest, detailed answer. Grateful to be sharing the...

By David Barzilai, MD PhD
Epigenetic Age Acceleration Links to MRI Aging Markers
SocialMar 20, 2026

Epigenetic Age Acceleration Links to MRI Aging Markers

Association of epigenetic age acceleration with MRI biomarkers of aging and Alzheimer's disease neurodegeneration https://t.co/VSJVp4MYij

By David Barzilai, MD PhD
Single-Cell Clocks Offer Precise Insight Into Aging
SocialMar 20, 2026

Single-Cell Clocks Offer Precise Insight Into Aging

Single-cell aging clocks: A precision tool for dissecting and targeting the aging process https://t.co/5e47qWtZwH https://t.co/ImfBb45luO

By David Barzilai, MD PhD
Oxytocin Emerges as Lifelong Molecular Regulator of Health
SocialMar 20, 2026

Oxytocin Emerges as Lifelong Molecular Regulator of Health

Oxytocin, Epigenetic Aging, and the Social Regulation of Health: A Lifecourse Perspective on the Maejima et al. Findings 👉"These findings provide the first molecular evidence supporting what has long been proposed: that the OXT system functions as a fundamental long-term regulator of...

By David Barzilai, MD PhD
Experts Debunk Keto “Cure” Claim for Schizophrenia
SocialMar 20, 2026

Experts Debunk Keto “Cure” Claim for Schizophrenia

Can the Keto Diet Really Improve Mental Health? Health Secretary Robert F. Kennedy Jr. recently said that the diet could “cure” schizophrenia. We asked experts about the claim. https://t.co/s4ItEREHqW https://t.co/3CAFA8h3y2

By David Barzilai, MD PhD
Geroscience Shows Lifespan and Healthspan Can Coexist
SocialMar 19, 2026

Geroscience Shows Lifespan and Healthspan Can Coexist

Geroscience is for healthy life extension. We should stop pretending that lifespan and healthspan compete.👨‍⚕️

By David Barzilai, MD PhD
HIIT Modulates Exerkine Secretion Across Health, Disease, Aging
SocialMar 19, 2026

HIIT Modulates Exerkine Secretion Across Health, Disease, Aging

Acute and chronic effects of high-intensity interval training on selected exerkine secretion in health, disease, and aging: a systematic review https://t.co/EqwyebvN62 https://t.co/yOQgxagZER

By David Barzilai, MD PhD
Intermittent Fasting May Slow Immune Aging and Inflammation
SocialMar 18, 2026

Intermittent Fasting May Slow Immune Aging and Inflammation

Intermittent fasting and immune aging: implications for immunosenescence, inflammaging, neuroinflammation, and frailty "This review explores how IF may exert immunoregulatory effects through metabolic remodeling, cellular stress responses, and inflammatory signaling..." https://t.co/CxfUNppvST

By David Barzilai, MD PhD
Geroscience Should Prioritize Healthspan, Not Just Lifespan
SocialMar 18, 2026

Geroscience Should Prioritize Healthspan, Not Just Lifespan

From a clinical perspective, patients are not asking for abstract years. They are asking for time with family, time in full cognition, time in independence, and time living on their own terms. That is why geroscience should be judged not...

By David Barzilai, MD PhD
AlphaFold Adds Millions of Complexes, Illuminating Protein Interactions
SocialMar 18, 2026

AlphaFold Adds Millions of Complexes, Illuminating Protein Interactions

Millions of protein complexes added to AlphaFold Database shed light on how proteins interact https://t.co/Kt9oFFkAf2 https://t.co/tEnlYOTCPl

By David Barzilai, MD PhD
Healthy Life Extension: Geroscience’s Guiding Principle
SocialMar 17, 2026

Healthy Life Extension: Geroscience’s Guiding Principle

Healthy Life Extension: The “North Star” of Geroscience🌟| @AgingJrnl 🩺 - David Barzilai MD PhD | @agingdoc1👨‍⚕️ 🔗https://t.co/JqhGgOe3nA https://t.co/ieBQZ6pAQd

By David Barzilai, MD PhD
Aging Genetics Pioneer Tom Johnson Passes, Legacy Endures
SocialMar 17, 2026

Aging Genetics Pioneer Tom Johnson Passes, Legacy Endures

Thomas Eugene Johnson The field of aging genetics lost one of its pioneers. Tom Johnson's identification of the age-1 mutant allele in C. elegans was a landmark moment, showing that a single genetic change could dramatically extend lifespan. That discovery helped...

By David Barzilai, MD PhD
Can NAD⁺ Manipulation Extend Human Healthspan?
SocialMar 17, 2026

Can NAD⁺ Manipulation Extend Human Healthspan?

NAD for Health: Opportunities & Challenges 2026 This international conference will explore a central question in aging research: can manipulation of nicotinamide adenine dinucleotide (NAD⁺) metabolism enhance human healthspan and prevent age-related diseases? https://t.co/bEtQPmUnSh

By David Barzilai, MD PhD
New AHA/ASA Guideline Optimizes Early Acute Stroke Care
SocialMar 16, 2026

New AHA/ASA Guideline Optimizes Early Acute Stroke Care

2026 Guideline for the Early Management of Patients With Acute Ischemic Stroke: A Guideline From the American Heart Association/American Stroke Association https://t.co/YToJnO22Zx

By David Barzilai, MD PhD
Semaglutide Boosts Metabolism, Reduces Anxiety in Obese Mice
SocialMar 16, 2026

Semaglutide Boosts Metabolism, Reduces Anxiety in Obese Mice

Beyond the Weight Loss: The Effects of Semaglutide on Standard and Diet-Induced Obese Mice 🤔"..semaglutide improved glucose metabolic health inboth diet groups..while chronic semaglutide treatment appeared to exertanxiolytic effects in obese mice, opposit[e] effects were observed in lean animals.." https://t.co/doU6EkwT7z

By David Barzilai, MD PhD
Low‑Carb Diets Linked to Higher 10‑Year CVD Risk
SocialMar 16, 2026

Low‑Carb Diets Linked to Higher 10‑Year CVD Risk

Association between Low-carbohydrate Diets and 10-year Atherosclerosis Cardiovascular Disease Risk: Data from the National Health and Nutrition Examination Survey https://t.co/NavY2Ldwip https://t.co/Is80ZwaTXu

By David Barzilai, MD PhD
Daily Courage and Gratitude Turn Tough Seasons Into Growth
SocialMar 16, 2026

Daily Courage and Gratitude Turn Tough Seasons Into Growth

Each day gives you a chance to show up with courage, do something meaningful, and push through when it’s hard. A little gratitude and a willingness to grow can turn even the toughest seasons into something that shapes you for the...

By David Barzilai, MD PhD
Intermittent Calorie Restriction More Feasible for T2D Patients
SocialMar 16, 2026

Intermittent Calorie Restriction More Feasible for T2D Patients

The effect of continuous or intermittent calorie-restricted diet on body composition and 2 resting energy expenditure in patients with type 2 diabetes "both diets appear promising, with a lower 60 dropout rate in ICR suggesting greater feasibility..." https://t.co/sPAkTrVK40 https://t.co/C82NXBEddG

By David Barzilai, MD PhD
Seed Oils Aren’t Uniquely Toxic Compared to Other Fats
SocialMar 16, 2026

Seed Oils Aren’t Uniquely Toxic Compared to Other Fats

#380 ‒ The seed oil debate: are they uniquely harmful relative to other dietary fats? | Layne Norton, Ph.D. https://t.co/tezM4gAKI9

By David Barzilai, MD PhD
Red Meat in Plant-Forward Diet Impacts Aging Biomarkers
SocialMar 16, 2026

Red Meat in Plant-Forward Diet Impacts Aging Biomarkers

Effects of Minimally Processed Red Meat within a Plant-Forward Diet on Biomarkers of Physical and Cognitive Aging: A Randomized Controlled Crossover Feeding Trial https://t.co/hpjHcUsbtP https://t.co/Kf2yZhbmVe

By David Barzilai, MD PhD
Low‑dose EGCG + L‑theanine Reverses Fatty
SocialMar 16, 2026

Low‑dose EGCG + L‑theanine Reverses Fatty

Low-dose epigallocatechin gallate combined with L-theanine effectively alleviate obesity and metabolic dysfunction-associated steatotic liver disease by remodeling gut homeostasis and avoiding its hepatotoxicity https://t.co/rRnmHMr0An https://t.co/8DyZbmkAwg

By David Barzilai, MD PhD
EPA Outperforms DHA in Sleep‑deprivation Cognitive Decline
SocialMar 15, 2026

EPA Outperforms DHA in Sleep‑deprivation Cognitive Decline

Dietary EPA shows superior efficacy over DHA in chronic sleep deprivation-induced cognitive decline by disrupting the crosstalk between intestinal ferroptosis and gut-derived Aβ production 🧠👨🏻‍⚕️ 🔗https://t.co/rqUO058bO9 https://t.co/Kr137l2BvH

By David Barzilai, MD PhD
High FSH, Not Low Estrogen, Drives Cognitive Decline
SocialMar 15, 2026

High FSH, Not Low Estrogen, Drives Cognitive Decline

Follicle-stimulating hormone linked to cognitive decline and amyloid burden in postmenopausal women 👉"Elevated FSH, not low E2, is linked to cognitive decline and Aβ pathology in postmenopausal women." https://t.co/EkFxbjsao9

By David Barzilai, MD PhD
Glyphosate Linked to Lower Bone Density and Fractures
SocialMar 15, 2026

Glyphosate Linked to Lower Bone Density and Fractures

Glyphosate exposure, bone mineral density, osteoporosis, and fractures in the United States population 👉"Results are internally consistent and align with existing literature concerning toxicity of glyphosate on bone and extend it to include adverse impact on osteoporosis and fractures." https://t.co/5kJOV4KD1X

By David Barzilai, MD PhD
Single Rapamycin Dose Boosts Brain Glucose, Cuts Synaptic Density
SocialMar 15, 2026

Single Rapamycin Dose Boosts Brain Glucose, Cuts Synaptic Density

Single-dose rapamycin increases brain glucose metabolism but reduces synaptic density in Long-Evans rats [One week after intraperitoneal administration of rapamycin (8 mg/kg) 👨‍⚕️] https://t.co/6JhcZYS01h https://t.co/wruacgIvFM

By David Barzilai, MD PhD
75‑Year‑Old
SocialMar 15, 2026

75‑Year‑Old

An intriguing case of “exceptional resilience” against dementia A 75-year-old man free of dementia despite a dominant Alzheimer’s mutation — and a possible hint for the rest of us https://t.co/lWn9gCKrEm https://t.co/jq0L2NtZ27

By David Barzilai, MD PhD
Insulin-Like Peptide Trades Combat for Survival in Beetles
SocialMar 15, 2026

Insulin-Like Peptide Trades Combat for Survival in Beetles

Insulin-like peptide has antagonistic pleiotropic effects on male combat traits and survival traits in an armed beetle https://t.co/7Re0I2vcDW

By David Barzilai, MD PhD
External Regulation Needed to Push Publishers Toward Best Practices
SocialMar 15, 2026

External Regulation Needed to Push Publishers Toward Best Practices

Put pressure on publishers to follow best practice — external regulation is the answer Journals that work hard to meet the needs of both authors and readers should be acknowledged publicly — encouraging others to follow suit. https://t.co/5j3fyB3czB https://t.co/PpnV6xwPBM

By David Barzilai, MD PhD
Just 15‑20 Min of Vigorous Exercise Cuts Mortality
SocialMar 15, 2026

Just 15‑20 Min of Vigorous Exercise Cuts Mortality

Vigorous physical activity, incident heart disease, and cancer: how little is enough 👉"VPA of 15–20 min/week were associated with a 16–40% lower mortality HR, with further decreases up to 50–57 min/week." https://t.co/Efp99sop1h https://t.co/zqzoL6xYor

By David Barzilai, MD PhD
More Exercise Variety Cuts All‑Cause Mortality by 19%
SocialMar 15, 2026

More Exercise Variety Cuts All‑Cause Mortality by 19%

Physical activity types, variety, and mortality: results from two prospective cohort studies "Higher physical activity variety was associated with lower mortality. After adjustment for total physical activity levels, participants in the group with the highest physical activity variety score (group 5),...

By David Barzilai, MD PhD
Minimally Invasive Clearing Media Enables Deep Live Brain Imaging
SocialMar 14, 2026

Minimally Invasive Clearing Media Enables Deep Live Brain Imaging

Isotonic and minimally invasive optical clearing media for live cell imaging ex vivo and in vivo "Here we develop minimally invasive optical clearing media for fluorescence imaging of live mammalian tissues.... SeeDB-Live minimally affects neuronal electrophysiological properties and sensory responses in...

By David Barzilai, MD PhD
2026 Joint Guideline Redefines Dyslipidemia Management Standards
SocialMar 14, 2026

2026 Joint Guideline Redefines Dyslipidemia Management Standards

2026 ACC/AHA/AACVPR/ABC/ACPM/ADA/AGS/APhA/ASPC/NLA/PCNA Guideline on the Management of Dyslipidemia: A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines https://t.co/Jq8Zh6XQlY https://t.co/OFicPSvJuH

By David Barzilai, MD PhD