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Dr. Todd Ewing PhD.

@ewingt-phd.bsky.social
445 followers 736 following 584 posts

Drug Discovery / Aging / Fitness Convincing myself that aging is simply loss of regulation/repair and CAN BE reversed! I wrote a book! BIOLOGICAL YOUTH amazon.com/dp/1535584459

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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 16h
Critique of #senolytic #vaccine claim 🧪🧬 link.springer.com/article/10.1... @atanas-g-atanasov.bsky.social @bakersm11.bsky.social @mljtpa.bsky.social @jngljane.bsky.social @mfamyfuerza.bsky.social @42ndhumanbeing.bsky.social @erlangen.bsky.social @diana180.bsky.social @esiobhanmitchell.bsky.social
link.springer.com
Treatment benefit does not establish senolysis or lifespan extension - Journal of Translational Medicine
Journal of Translational Medicine -
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 16h
Original article "Synergistic senolytic–regenerative therapy significantly extends #healthspan and #lifespan" link.springer.com/article/10.1...
link.springer.com
Synergistic senolytic–regenerative therapy significantly extends healthspan and lifespan - Journal of Translational Medicine
Background Current barriers to achieving radical life extension include the inability to use syngeneic, youthful mesenchymal stem cells (MSCs) and the anti-regenerative effects of senescence-associate...
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 16h
Cautionary letter regarding #longevity #hype bioengineer.org/better-survi... Critics point out — #senolysis #healthspan & #lifespan need to be validated when asserted — injury model survival is poor surrogate of normal healthy lifespan extension
bioengineer.org
Better Survival in Mice Is Not Proof of Senolytic Anti-Ageing Success,
A new letter in the Journal of Translational Medicine argues that a senolytic vaccine study showed real therapeutic benefit in mice but failed to prove selective senescent-cell clearance or genuine
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 03/10/2026
Way too funny!
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 02/10/2026
Great points Another important issue is how all my drug discovery clients rely on Chinese contract-research organizations for out-sourcing of chemical synthesis and biochemical analysis I would guess that US Pharma out-sources 80% of synthesis/analysis to Chinese CROs 🧪
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 01/10/2026
Pharmacological Activation of AMPK Extends Lifespan 🧪🧬 onlinelibrary.wiley.com/doi/10.1111/... @atanas-g-atanasov.bsky.social @gmpinglish.bsky.social @mljtpa.bsky.social @jngljane.bsky.social @mariaoconnor.bsky.social @mfamyfuerza.bsky.social @carnegielemon.deferredreality.com @eh-neeld.bsky.social
onlinelibrary.wiley.com
Direct Pharmacological Activation of <fc>AMPK</fc> Extends Lifespan in Yeast, Worms and Flies
AMP-activated protein kinase (AMPK) is a key evolutionarily conserved sensor of energy homeostasis, which is implicated in metabolic health and disease, as well as in ageing. Here, we show that direc....
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 01/10/2026
Activation of AMPK extends organism #lifespan www.ukri.org/news/experts... — AMPK senses when energy low by #exercise, #fasting or #stress — AMPK turns off building proteins, storing fat — AMPK turns on burning stored fat and sugar Credit to @ukri.org
ukri.org
Experts extend lives of animals by activating ‘energy saver’ mode
Scientists have successfully prolonged the lifespan of animals.
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 01/10/2026
Can aging be treated like a disease? www.cnn.com/health/can-a... My heroes Drs Nir Barzilai & Daniel Belsky weigh in #TLDR — Longevity clinics can only measure aging biomarkers, but no medical interventions available — Focus on healthy lifestyle: #exercise, #nutrition, #sleep, #socialization
cnn.com
Can aging be treated like a disease? Scientists are starting to find out | CNN
As research into longevity advances, scientists are finding new ways to test a once-speculative idea: that aging itself could become a target of medicine.
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 30/09/2026
Excellent study! In the competition of genome replication in the gut, pathobionts devote genes for microtoxins instead of complex carbohydrate catabolism We all need to reduce dietary refined carbs in order to promote diverse eutrophic gut microbiome
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 29/09/2026
Older adults still taking common drugs, despite new guidelines www.sfchronicle.com/health/aging... — medicines are like barnacles, easy to start, hard to stop — #benzodiazepines for insomnia, anxiety — #antibiotics for uncomplicated diverticulitis — #aspirin for primary prevention #aging 🧪🩺📊🧬🛟
sfchronicle.com
Guidelines changed on these common drugs. Many older adults still take them
New research shows how hard it can be to stop medications once they become routine, even after medical advice shifts.
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 27/09/2026
Sounds hilarious!
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 27/09/2026
Yes, and magic pills...
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 26/09/2026
Why tech billionaires don't ask theoretical physicists for #longevity advice www.theguardian.com/science/2026... “We’re a blink of an eye compared with the age of the universe. If I spend that blink of an eye trying to extend it to two blinks of an eye, I’m not sure it's a worthwhile thing” 🧪
theguardian.com
Tech billionaires trying to live for ever? That’s a waste of time, says physicist
Exclusive: Prof Jim Al-Khalili says he will offer solution to ‘arrow of time’ problem in Royal Institution lectures
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 26/09/2026
Creatine suppl. w/ & w/o exercise diet intervention 🧪 www.tandfonline.com/doi/full/10.... @atanas-g-atanasov.bsky.social @gmpinglish.bsky.social @mljtpa.bsky.social @jngljane.bsky.social @mariaoconnor.bsky.social @mfamyfuerza.bsky.social @carnegielemon.deferredreality.com @eh-neeld.bsky.social
tandfonline.com
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 26/09/2026
More positive results for #creatine #supplement lifespan.io/creatine-pro... — 5g twice/day increases strength, endurance & (maybe) cognitive function — helps both in combination with #exercise & #diet or not
lifespan.io
Creatine Protects Lean Mass Even Without Exercise
According to a new study, creatine supplementation might help maintain and increase lean mass even without diet or exercise.
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 26/09/2026
Love it! I'm actually dreaming of a theory of why we age at different rates explained by the gain or loss of physiological regulation It would explain how we can adjust our lifestyle, physical environment & even social environment to either promote or undermine our physiological regulation
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 25/09/2026
Physiological resilience strengthens when social vs. lone?
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Reposted by Dr. Todd Ewing PhD.
P. Inglish @gmpinglish.bsky.social · 23/09/2026
Good!
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 23/09/2026
Challenge question for you: What is the biological mechanism by which dietary sugar/carbs accelerate aging?
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 22/09/2026
RFK Jr should indeed But he's a class-action lawyer, not a health scientist My translation: we need a qualified HHS secretary
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 22/09/2026
Early-life sugar restriction slows biological aging 🧪🩺📊🧬🛟 www.pnas.org/doi/10.1073/... @atanas-g-atanasov.bsky.social @gmpinglish.bsky.social @mljtpa.bsky.social @jngljane.bsky.social @flipturns.bsky.social @mfamyfuerza.bsky.social @carnegielemon.deferredreality.com @neurowithmelike.bsky.social
pnas.org
Early-life sugar restriction causally reduces adult cancer incidence and slows biological aging | PNAS
Excess sugar consumption is implicated in multiple cancers through insulin resistance, chronic inflammation, and metabolic reprogramming, yet wheth...
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 22/09/2026
More evidence added #sugar accelerates #aging theconversation.com/babies-born-... — Britain’s postwar sugar rationing reduced infant exposure — Rationing ended September 1953 & infant exposure 2X — Incr. sweetness preference — Incr. 5 types of cancer: breast, prostate, liver, rectal, lung #health
theconversation.com
Babies born under sugar rationing grew into adults with lower cancer risk
Britain’s postwar sugar rationing was an accidental experiment. Decades on, it’s revealing how early diet shapes cancer risk, ageing and eating habits for life.
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 21/09/2026
Can #nutrients in our foods mimic calorie restriction and increase our #healthspan? 🧪 theconversation.com/can-nutrient... — No evidence yet for #supplements spermidine, urolithin A, resveratrol — Overwhelming evidence for whole #plantbased foods via Prof Justin Roberts @us.theconversation.com
theconversation.com
Can nutrients in our foods mimic calorie restriction and increase our healthspan?
Researchers are investigating whether food compounds can imitate calorie restriction. The strongest evidence still comes from cells and animals.
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 19/09/2026
Cysteine excess triggers mitochondrial iron cell death 🧪 www.nature.com/articles/s42... @atanas-g-atanasov.bsky.social @gmpinglish.bsky.social @mljtpa.bsky.social @jngljane.bsky.social @flipturns.bsky.social @mfamyfuerza.bsky.social @carnegielemon.deferredreality.com @neurowithmelike.bsky.social
nature.com
Cysteine excess triggers a mitochondrial iron-dependent cell death - Nature Metabolism
Using a genome-wide CRISPR screen, the authors demonstrate that excess cysteine drives mitochondrial iron accumulation and iron–sulfur cluster failure, triggering a distinct iron-dependent cell death ...
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 19/09/2026
Why is #cysteine amino acid so toxic to cells? www.rockefeller.edu/news/40469-c... — intracellular cysteine stored as glutathione — excess cysteine frees iron from ferritin — excess iron in mitochondria damages iron-sulfur proteins — mitochondria fail — cell death #health #supplement #aging
rockefeller.edu
The Rockefeller University » Why high levels of the amino acid cysteine are toxic to cells
The findings explain why the cell prefers glutathione, and may lead to new therapies for certain types of neurodegeneration and cancers.
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Reposted by Dr. Todd Ewing PhD.
marypsaeake.bsky.social @marypsaeake.bsky.social · 12/09/2026
See, it's not that hard to change to a plant-based diet at all!
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 19/09/2026
I propose a ridiculously simple equation in my book If fitness is defined sufficiently broadly, then it's resilience to failure, and can be considered biological youthfulness Likewise, frailty is the inverse of fitness, and it's susceptibility to failure, or biological age. 100% frailty = death
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Reposted by Dr. Todd Ewing PhD.
Aging Journal @aging-us.bsky.social · 18/09/2026
#PaperoftheDay: "Control theory of aging and longevity for gerotherapeutic drug discovery: state space, vector fields, modalities, safety, and the minimum safe cost of functional restoration" DOI ⬇️ bit.ly/3T8bQg0 #Aging #Research #OpenAccess #Gerontology #Publishing
doi.org
Control theory of aging and longevity for gerotherapeutic drug discovery: state space, vector fields, modalities, safety, and the minimum safe cost of functional restoration | Aging
Existing aging theories describe what changes with age but do not prescribe how to intervene. We propose a control-theoretic framework that is not merely descriptive but prescriptive: it specifies wh
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 19/09/2026
Love it! @elonverse.bsky.social Your aging framework is an excellent citation for the aging theory manuscript I'm writing up Totally agree we need new theories need to clearly illuminate the path towards successful aging interventions!
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Reposted by Dr. Todd Ewing PhD.
Simple as possible - not simpler @ockamsrazor.bsky.social · 11/09/2026
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 12/09/2026
Totally agree! I personally believe the US health care system should be performing this analysis every annual exam Imagine if our physicians measured our push-ups, pull-ups, sit-ups & sprints every year! How much healthier & fit we'd all be!
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 11/09/2026
Apple introduces #biological #aging in #health app🧪 www.apple.com/newsroom/202... Incorporates — resting heart rate, sleep, HRV — physical tests of flexibility, strength, balance, movement mechanics, VO2 max — 50 lab tests for $119 @ Quest Diagnostics #geronsky #gerosky @geronsociety.bsky.social
apple.com
Apple advances health and fitness capabilities using Apple Intelligence
Apple today announced its most advanced health and fitness experience yet, deepening the capabilities of Apple Watch and iPhone as intelligent, science-based tools for personal health.
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 08/09/2026
Reference Nut consumption & risk of hypertension 🧪 www.cambridge.org/core/journal... @atanas-g-atanasov.bsky.social @gmpinglish.bsky.social @mljtpa.bsky.social @jngljane.bsky.social @flipturns.bsky.social @mfamyfuerza.bsky.social @carnegielemon.deferredreality.com @neurowithmelike.bsky.social
cambridge.org
Nut consumption and the risk of hypertension: a systematic review and dose response meta-analysis of prospective studies | British Journal of Nutrition | Cambridge Core
Nut consumption and the risk of hypertension: a systematic review and dose response meta-analysis of prospective studies
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 08/09/2026
Eating nuts associates with reducing hypertension risk theconversation.com/eating-a-han... — largest risk factor for early death by #heart attack, #stroke, #kidney failure, #dementia — 35g/d nuts assoc w/ 26% lower risk hypertension — #plantbased may provide even further benefit #health #wellness
theconversation.com
Eating a handful of nuts each day is linked with lower risk of high blood pressure, our research shows
Consuming between 30-35g of nuts daily was linked with a 26% lower risk of hypertension.
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 08/09/2026
Here's another excellent study supporting my developing Regulation Theory of Aging wherein loss of physiological regulation underpins all #aging phenotypes "structural aging is coordinated across organs within individuals" credit to researchers @sbpdiscovery.bsky.social #science 🧪 #GeroSky
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 08/09/2026
Fascinating study of mouse brain waste clearance "Disruption of brain waste clearance has emerged as — a key feature of brain aging and — a common hallmark across neurodegenerative diseases"
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 08/09/2026
Right on! Totally agree Human body can adapt to any lifestyle habit we adopt for better or worse!
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Reposted by Dr. Todd Ewing PhD.
Dona Dickinson @donadickinson.bsky.social · 07/09/2026
It makes a lot of sense that our bodies adapt to dietary changes and optimize over time. Thanks for sharing this.
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 07/09/2026
Neutrophil NET clearance & predisposition to #disease www.sciencedirect.com/science/arti... DNASE1*2/Q222R gene variant assoc with — reduced DNase I activity — impaired NET clearance during inflammatory stress — myocardial infarction, autoimmunity, malignancy, liver disease #genetics 🧪 🧬
sciencedirect.com
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Reposted by Dr. Todd Ewing PhD.
Scott McGrath @smcgrath.phd · 07/09/2026
🧪 New pre-print: A single-payer healthcare system would cut US health spending by $1.04 trillion annually and save 114k lives. Remarkably, nearly half of those preventable deaths aren't among the uninsured, but found within the 45M underinsured adults who still can't afford timely care. #MedSky 🛟
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 07/09/2026
Reference: Physiological Adaptation to Plant-Based Diets www.mdpi.com/2079-7737/15... 🧪 @atanas-g-atanasov.bsky.social @gmpinglish.bsky.social @mljtpa.bsky.social @jngljane.bsky.social @flipturns.bsky.social @mfamyfuerza.bsky.social @carnegielemon.deferredreality.com @neurowithmelike.bsky.social
mdpi.com
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 07/09/2026
Long-term adaptation to #plantbased #diet www.pcrm.org/news/news-re... Iron – absorbs more efficiently Creatine & carnosine – increases biosynthesis Protein – muscle mass, strength comparable Fiber – ferments more efficiently Polyphenols – higher levels of microbial metabolites
pcrm.org
The Body Doesn't Just Absorb a Plant-Based Diet—It Adapts to One, New Review Finds
WASHINGTON, DC — A new peer-reviewed review published in the journal Biology argues that much of the debate over whether plant-based diets deliver enough iron, protein, creatine, and other nutrients r...
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 07/09/2026
Conclusion: Tumor-targeted multifunctional extracellular vesicles — selective and enhanced tumor-targeted cell killing in vitro — opportunity for developing EV-based drug carriers for cancer therapy
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Reposted by Dr. Todd Ewing PhD.
Dona Dickinson @donadickinson.bsky.social · 05/09/2026
Lovely to see science showing these results. Both yoga and Pilates emphasize mindfulness and the importance of breath, which may help reduce stress. I look forward to more research on these topics!
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 05/09/2026
Complementary & Alternative Medicine & Mortality 🧪 www.ajpmonline.org/article/S074... @atanas-g-atanasov.bsky.social @gmpinglish.bsky.social @mljtpa.bsky.social @jngljane.bsky.social @flipturns.bsky.social @mfamyfuerza.bsky.social @carnegielemon.deferredreality.com @neurowithmelike.bsky.social
ajpmonline.org
Complementary and Alternative Medicine Use and All-Cause Mortality Among US Adults: A National Prospective Cohort Study
: Although complementary and alternative medicine (CAM) practices are widely used across the US population, population-level associations with mortality remain understudied. This study examined explor...
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 05/09/2026
#yoga & #pilates may boost #longevity! news.asu.edu/20260904-hea... — researchers @arizonastateuni.bsky.social analyze 21 complementary & alternative medicine #lifestyle interventions — most show no #longevity benefit, except yoga & pilates — needs validation w follow-up studies! #health #geroage
news.asu.edu
ASU researchers find yoga and Pilates associated with longer lifespans | ASU News
Anti-aging advice is everywhere. After all, who doesn’t want to live a longer, healthier life?But according to Arizona State University researcher Connor Sheehan, not every wellness practice promoted ...
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 01/09/2026
"Overall, our results suggest: — the AP (area postrema) is responsible for the appetite-suppressing effects of GIPR agonism — GIP receptors in the hypothalamus underlie the ability of GIPR antagonism to enhance the weight loss effects of GLP-1R and amylin receptor agonists" 🧪
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 01/09/2026
Source 🧪 Oligodendrocyte dysfunction in human age-related cognitive decline www.nature.com/articles/s41... @atanas-g-atanasov.bsky.social @htina.bsky.social @mljtpa.bsky.social @jngljane.bsky.social @mfamyfuerza.bsky.social @cillefish.bsky.social @erlangen.bsky.social @lakitukl.bsky.social
nature.com
Oligodendrocyte dysfunction in human age-related cognitive decline - Nature Medicine
This study identifies oligodendrocytes as active contributors to cognitive decline in aging, by leveraging a unique human brain bank with more than 70 years of associated cognitive data combined with ...
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 01/09/2026
NRF2 loss in #brain #cells associates with #dementia www.ed.ac.uk/news/support... — dementia linked to fewer but larger nerve fibers — excess myelin coating — loss of NRF2 in myelin producing cells — NRF2-targeted interventions could preserve cognition #health #aging #research
ed.ac.uk
‘Supportive’ brain cells may drive cognitive decline | News | The University of Edinburgh
Brain cells that produce the protective coating around nerve fibres can become dysfunctional with age and may actively contribute to cognitive decline, according to new research.
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Dr. Todd Ewing PhD. @ewingt-phd.bsky.social · 31/08/2026
Like, how many plants must die to feed these vegans?
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