PEP/NEWS — Peptide intel. Daily.

Jerzy Gregorek is a 4x World Weightlifting Champion, co-founder of UCLA’s weightlifting team, and co-creator, with his wife Aniela, of the Happy Body program. You can watch Prisoner No More for free here: https://tim.blog/hardchoices. To fi

Prisoner No More follows Tae Jin Park, a young man diagnosed with cerebral palsy, who dismantled every physical limitation medical science predicted for him. Through athletic training under Olympian strength coach Jerzy Gregorek—and an unco

Forever Healthy released AI4L, an open-source tool built to generate rigorous, evidence-based longevity reviews. It's positioned as a research aid — not a protocol generator — but it could accelerate how practitioners evaluate peptide and intervention literature.

Researchers induced intermittent hypoxia in mice to mimic sleep apnea and found it sharply increased senescent cell burden in vascular tissue. The finding strengthens the case that untreated sleep apnea is a direct driver of cardiovascular aging — not just a correlate.

Rockefeller's Dr. Junyue Cao develops ultra-high-throughput single-cell tech and applies it to aging biology. His lab's recent paper maps cellular aging at a resolution that could redefine which tissues age fastest — and why.

Brain imaging data reviewed by Attia's team shows menopause drives measurable shifts in brain physiology — not just hormone levels. The piece puts hormonal optimization research in a broader neurological frame.

Johnson tested his home and found microplastics, VOCs, and forever chemicals throughout. The 14-item checklist he shares ranges from free habit changes to equipment upgrades — practical environmental context for anyone optimizing systemic inflammation.

The first trial pairing rapamycin with structured exercise came back negative. Attia argues one trial doesn't settle the question — and lays out why the geroprotector hypothesis still has legs despite the miss.

New county-level data from 3,143 US counties puts less than 7 hours of sleep in the top 3 predictors of shorter life — behind only smoking and obesity. Johnson details the evidence and his current sleep architecture approach.

Attia's AMA #84 covers NAD supplementation (a mitochondrial co-factor tied to cellular energy), metabolic health markers, and practical dementia risk reduction. Dense with actionable research context.

Johnson's team cut the complexity from his daily protocol after scrutinizing every step for evidence. What remains is a stripped-down version of Blueprint — useful reference for researchers tracking how evidence-based optimization stacks evolve over time.

Researchers in Aging Cell traced how age-related Paneth cell decline — driven by microRNA-152 — makes the gut lining more vulnerable to pathogenic bacteria. A mechanistic link between intestinal aging and microbiome disruption.

A broad epidemiological review finds environmental exposures and lifestyle choices dominate genetic variants in predicting late-life mortality. The data reinforces optimization-focused approaches over fatalistic genetic framing.

Nature Aging reports that controlled autophagic degradation of HIF-1α (a protein that responds to low oxygen) reduces cellular aging markers and extends lifespan in mammals. The pathway may be a future target for pharmacological intervention.

Researchers describe an albumin-based nanoprobe that detects therapy-induced cellular senescence through a simple urine test. A non-invasive senescence readout would be a significant upgrade for clinical aging research.