Just 90–120 minutes of strength training a week may deliver some of the biggest long-term health rewards, according to a study tracking more than 147,000 people for 30 years. That amount was linked to lower risks of death overall, particularly from cardiovascular and neurological diseases. Combining strength workouts with aerobic exercise produced even stronger benefits.
The field of human adult neurogenesis has been controversial despite mounting evidence. This Perspective proposes moving beyond debating the existence of adult neurogenesis, and towards discovering strategies to harness endogenous stem cell potential for resilience against cognitive aging.
Inherited genetic mutations may also stay silent for decades before increasing the risk of diseases such as cancer or fibrosis later in life.
Evolutionary Biology and Aging Research
The researchers say their model builds on long-standing evolutionary theories of aging. One influential idea is that natural selection becomes weaker later in life, allowing harmful biological processes to emerge with age because they have less impact on reproduction and survival earlier in life.
The study, published in Nature Human Behaviour, demonstrates that social inequality, such as poverty and racism, is related to biological aging measured in the epigenome, also known as “epigenetic clocks.” Epigenetic clocks analyze patterns of chemical marks on DNA to estimate a person’s biological age or the rate at which their body is aging. These tools are increasingly used by scientists to study how environmental exposures, lifestyle and social conditions affect health across the life course.
Previous individual studies have shown that epigenetic clocks are sensitive to socioeconomic and racial or ethnic disparities. However, because multiple types of epigenetic clocks exist, it has remained unclear which measures best capture the effects of social determinants of health, at which stages of life socioeconomic exposures most affect epigenetic aging, and whether associations differ by sex or by technical factors such as the tissue in which epigenetic data are collected. This study integrates findings across many independent studies, offering a comprehensive test of whether these associations are consistent and robust.
We’re launching a new series at StayCurious Metabolism called Peptides Plus, where we’ll explore the most promising tools available today—and the innovations that may shape tomorrow. We have dozens of deep dives planned, covering everything from emerging therapeutics to cutting-edge performance and longevity interventions.
Chapters. 0:00 — Superhuman Biology Is Already Starting. 2:40 — Beyond GLP-1: Fat Loss Without Muscle Loss. 7:28 — Gene Editing, CRISPR, and the Future of Disease Cure. 14:57 — Cellular Reprogramming and Biological Age Reset. 18:49 — MicroRNAs, Mitochondria, and What Comes Next.
Dementia is a degenerative disease that no known drug can completely stop or reverse, despite decades of tests.
Now, a historically vilified psychedelic is emerging as a possible new avenue for controlling Alzheimer’s symptoms.
Neuroscientists around the world are starting to investigate if psilocybin – the psychoactive ingredient in magic mushrooms – can help protect the aging brain.
Hey friends, we’re running a longevity retreat in the CO mountains this August!
Peak Protocol is a 4-day science-first retreat at SageStone Adventure Lodge in Granite, CO (August 6–9).
The idea is to bring together people who want to get serious about their health, put them in a gorgeous venue with longevity doctors and scientists, and give everyone a personalized longevity plan to leave with.
Joe Betts-LaCroix and Retro Biosciences recently raised funding at a $1.8 billion valuation. In his first podcast appearance since the announcement, Joe shares his vision for extending healthy human lifespan and the breakthroughs driving the longevity industry forward.
Joe Betts-LaCroix explains why aging is becoming a legitimate scientific target. He shares how new discoveries are turning longevity from speculation into measurable biology.
The conversation explores how AI is accelerating research, while highlighting why biology remains one of the hardest problems to solve. Even with smarter models, real-world testing and clinical trials still take time.
Joe also discusses Alzheimer’s, partial cellular reprogramming, and the future of longevity medicine. He shares why exercise remains the best longevity tool available today and what the next decade could look like for human health.
Joe is the CEO of Retro Biosciences and a longtime entrepreneur focused on science and technology. His mission is to extend healthy human lifespan and accelerate breakthroughs in aging research.
This episode is brought to you by NADclinic, the go-to destination for longevity and human performance. Check them out at https://nadclinic.com.