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David A. Sinclair, Ph.D.

@davidsinclairphd.bsky.social
957 followers 14 following 278 posts

Professor @Harvard researching why we age & how to reverse it. Author & host of Lifespan. Mission: Extend healthy life for all. Views are entirely his own 🙏✌️

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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 19/09/2026
Stem cells don't run out, they get told to stop dividing and that instruction can be renegotiated
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 19/09/2026
Metformin's anti-aging reputation rests mostly on people who already had diabetes
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 19/09/2026
Evolution never optimized you for a hundred healthy years, that's a job you must finish yourself
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 31/07/2026
The best longevity drug available today is exercise and building muscle 💪
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 31/07/2026
Your future health isn’t determined by your birthday. It’s determined by what you repeatedly do between now and then 💪
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 09/06/2026
lifebiosciences.com/life-bioscie...
lifebiosciences.com
Life Biosciences Announces First Patient Dosed in Phase 1 Trial of ER‑100 for Optic Neuropathies
Lead epigenetic restoration therapy enters the clinic for glaucoma and NAION, targeting a root cause of age-related vision loss BOSTON, June 9, 2026 — Life Biosciences, Inc. (“Life Bio”), a biotechnol...
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 09/06/2026
Beyond ER‑100, Life Bio is developing applications of its proprietary Epigenetic Restoration platform for multiple indications in a variety of organs, reflecting the broad therapeutic potential of this platform.
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 09/06/2026
Advancing ER‑100 into the clinic is an important step toward translating epigenetic restoration into a new class of medicines for age-related diseases.”
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 09/06/2026
“Our preclinical studies have demonstrated that controlled OSK expression can reset epigenetic patterns associated with healthy cellular function, improve tissue performance, and restore visual function in animal models.
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 09/06/2026
“This milestone reflects years of rigorous scientific development and translational research,” said Sharon Rosenzweig‑Lipson, Ph.D., Chief Scientific Officer of Life Biosciences.
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 09/06/2026
Beyond ER-100, the company is strategically broadening its therapeutic pipeline to address additional age-related diseases, underscoring the platform’s versatility and transformative potential.
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 09/06/2026
ER‑100 is the first clinical candidate from Life Bio’s Epigenetic Restoration platform, which uses controlled expression of three transcription factors, OCT4, SOX2 and KLF4 (OSK) to restore cellular function by resetting the epigenetic code to more youthful patterns of gene expression.
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 09/06/2026
The Phase 1 trial will evaluate the safety and tolerability of ER-100, with additional endpoints assessing visual function.
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 09/06/2026
This innovative approach targets a root cause of aging at the epigenetic level, and has the potential to address a wide range of serious age-related diseases.
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 09/06/2026
The company’s proprietary Epigenetic Restoration platform utilizes three transcription factors, OCT4, SOX2, and KLF4 (OSK), to restore older and damaged cells to a younger and healthier state.
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 09/06/2026
@lifebiosciences has confirmed the first patient has been dosed with an epigenetic restoration drug candidate. Exciting milestone 🚀 Life Biosciences is the OG cellular rejuvenation company, using epigenetic restoration to reverse diseases of aging lifebiosciences.com/life-bioscie...
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 04/06/2026
The body responds to intensity more than duration. Even ~4.4 minutes of vigorous daily movement associates with ~26–30% lower mortality risk join.lifespan.com/577uh3zr
join.lifespan.com
Association of wearable device-measured vigorous intermittent lifestyle physical activity with mortality - Nature Medicine
Using data from wearable activity monitors, this study shows that short bursts of physical activity that are done as part of daily life activities and that are only 1 or 2 minutes in length are…
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 23/05/2026
Aging is noise in the system and noise can be reduced
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 23/05/2026
The question is not whether we age but how fast
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 23/05/2026
Cells respond to mild adversity by becoming stronger
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 23/05/2026
The more stable the system the slower the aging
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 22/05/2026
Aging is a drift away from optimal gene expression
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 22/05/2026
Longevity comes from maintaining order in complex systems
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 21/05/2026
Cells do not forget how to be young, they lose access
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 21/05/2026
The genome largely stays intact. What changes is how it is read
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 19/05/2026
Biological clocks are entering the medical mainstream
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 18/05/2026
The body is always responding to adversity and abundance
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 18/05/2026
Cells are resilient until pushed past repair capacity
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 17/05/2026
If aging is corrupted software, it can be reprogrammed
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 16/05/2026
Every system in the body is adapting all the time. You are in control
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 16/05/2026
Biology is not just chemistry, it is code
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 16/05/2026
The body remembers youth even when it looks old
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 16/05/2026
Aging is loss of information and the surprising finding is information can be restored
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 24/04/2026
From 2008-2024 I was accused of hyping (a common slur) for suggesting that changes to the epigenome might cause aging and that therapeutics could "allow us to reset the epigenome to a more youthful state." - Oberdoerffer & Sinclair (2009) Success has many fathers, while failure is an orphan
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 24/04/2026
Most people wait for disease.
By then, biology has already shifted
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 24/04/2026
Type 2 diabetes is associated with substantially higher mortality risk www.nejm.org/doi/full/10....
nejm.org
Diabetes Mellitus, Fasting Glucose, and Risk of Cause-Specific Death | NEJM
The extent to which diabetes mellitus or hyperglycemia is related to risk of death from cancer or other nonvascular conditions is uncertain. We calculated hazard ratios for cause-specific death, ac...
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 23/04/2026
Higher omega-3 levels are linked to ~15–20% lower mortality risk. More here: www.nature.com/articles/s41...
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 23/04/2026
Biology doesn’t care what’s “normal.”
It responds to signals. And it can be changed
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 21/04/2026
Muscle mass is a stronger predictor of survival than BMI in older adults Read here: www.sciencedirect.com/science/arti...
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 20/04/2026
Prevention is delayed treatment of aging
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 19/04/2026
The goal isn’t longer life.
It’s longer function and performance. Longer life is the side effect
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 18/04/2026
The earlier you intervene, the bigger the payoff
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 18/04/2026
About 7,000 steps/day is associated with ~50–70% lower mortality vs low activity jamanetwork.com/journals/jam...
jamanetwork.com
Steps per Day and All-Cause Mortality in Middle-aged Adults
This cohort study assesses the association of step volume and intensity with premature all-cause mortality among Black and White participants in the Coronary Artery Risk Development in Young Adults…
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 18/04/2026
Fixed it
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 18/04/2026
The future of medicine is treating causes, not symptoms. Aging is the main cause of disease
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 18/04/2026
Longevity isn’t about perfection.
It’s about direction
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 16/04/2026
You don’t need more time.
You need better biology
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 16/04/2026
Aging is the biggest unmet medical need by orders of magnitude
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 15/04/2026
REMOTE CONTROL MICE! A group from Seoul has just published in Cell that they’ve discovered a crazy-weird protein (Cyb5b) that can be used to turn on any gene when exposed to EMFs. They used it to turn on OSK and extend the lifespan of a progeroid mouse. Amazing! www.cell.com/cell/abstrac...
cell.com
Electromagnetic field-inducible in vivo gene switch for remote spatiotemporal control of gene expression
The EMF-inducible gene switch (Ei) platform provides precise spatiotemporal control of gene expression through Cyb5b-mediated calcium oscillations. This system enables Ei-OSK-driven in vivo rejuvenati...
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David A. Sinclair, Ph.D. @davidsinclairphd.bsky.social · 14/04/2026
Are annoying age spots due to epigenetic drift, a likely cause of aging? "Consistent with the Information Theory of Aging, we found a global disruption of tight epigenetic regulation"...at genes involved in DNA repair, inflammation & mitochondria Fascinating! link.springer.com/article/10.1...
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