Castration & Lifespan: What the Science Actually Shows About Testosterone

A new Nature study finds castration extends lifespan ~10% across animal species and historical Korean eunuchs lived 14-19 years longer, but the mechanism likely involves reduced risky behavior and altered growth hormone pathways—not simply low testosterone.

A new Nature study finds castration extends lifespan ~10% across animal species and historical Korean eunuchs lived 14-19 years longer, but the mechanism likely involves reduced risky behavior and altered growth hormone pathways—not simply low …

66 Promising
Design 14
Sample 13
Peer Review 13
Replication 12
Transparency 14

NAD+ Biology and Aging: Expert Insights on Boosting NAD Levels

Dr.

Dr. Charles Brenner, a leading NAD researcher and discoverer of nicotinamide riboside, discusses why NAD levels matter for aging, exercise recovery, and disease prevention. He clarifies common misconceptions about NAD decline with age and explains …

64 Promising
Design 14
Sample 11
Peer Review 12
Replication 13
Transparency 14