PEP/NEWS — Peptide intel. Daily.

EP. 276: Join my NEW menopause community for women: https://www.skool.com/drtyna In this episode, I'm talking with plastic surgeon Dr. Anthony Youn about what to know before getting cosmetic procedures and how to approach aging from the in

Dr. Alan Shindel, Dr. Christian Nelson, and Dr. Justin Dubin—leaders in sexual medicine and men's health—join Rena Malik, MD to break down the realities of premature ejaculation. The group challenges myths about duration, reveals why lastin

5 Movements That INSTANTLY Drop Blood Sugar After Every Meal!

Cutting dietary valine — a branched-chain amino acid — extended median and maximum lifespan in male mice. The finding adds to a growing picture of how amino acid composition, not just total protein, shapes longevity outcomes.

Physical activity delays ovarian aging, and a new Nature Aging paper traces part of the mechanism to adiponectin-related signaling. The research connects exercise, hormone signaling, and reproductive aging — areas relevant to kisspeptin and reproductive peptide research.

A Nature Aging cohort study found that social disadvantage is tied to faster biological aging — measured by established epigenetic clocks. The finding underscores that lifestyle and environmental factors shape aging trajectories as much as genetics or pharmacology.

Peter Attia breaks down what multifactorial trials can and cannot prove — and why that distinction matters for anyone tracking longevity research. The piece is directly relevant to peptide stack studies, where isolating cause and effect is genuinely hard.

Researchers combined EEG and fMRI to map which brain regions activate during key sleep rhythms. The work adds hard neuroscience to the sleep-optimization conversation — including where DSIP (a sleep-related peptide) fits mechanistically.

Part one of a three-part series lays the cell-biology foundation for understanding how cancer begins and which pathways tumors exploit. Essential context before evaluating any pro-growth peptide's risk profile.

Blocking RANKL (a protein involved in bone resorption) prevented bone loss, improved muscle function, and extended lifespan in mice with accelerated aging. The finding links bone-muscle cross-talk to systemic longevity — an axis relevant to anabolic peptide research.

Turning on the lactate receptor GPR81 reduced hallmarks of cellular senescence and improved muscle performance in aging models. The result matters for recovery-peptide researchers tracking the overlap between senolytic biology and musculoskeletal function.

The full companion article to the hero story. Attia's team goes compound by compound, separating what the evidence actually supports from what is marketing. One of the more rigorous mainstream takes on the peptide space in recent months.