Ranked fourth on the Rejuvenation Olympics leaderboard, 30-year-old Siim Land lists the supplements he takes to stay young. 


Aging &amp; Longevity

Studies suggest that supplementation with melatonin may slow brain aging, thereby improving cognition. 

Brain &amp; Neurons

Poor sleep, encompassing insufficient sleep duration and poor sleep quality, increases mortality and chronic disease risks, which may be countered by specific lifestyle optimization tactics. 


Explore the potential impact of inadequate sleep on lifespan and delve into a comprehensive examination of the associated longevity risks. Discover the latest insights and research findings on the crucial role of quality sleep in overall health and longevity. Read more on NAD.

Potential Impact of Inadequate Sleep on Lifespan: A Closer Look at Longevity Risks - NAD

Harvard Researchers Link Death from Sleep Deprivation to the Gut

A new study shows severe sleep loss leads to death by inducing the buildup of harmful, oxygen-containing molecules in the gut of flies, but antioxidant treatments restore lifespan.

(Lead author Dragana Rogulja, PhD | Harvard Brain Science Initiative)

Search Result: melatonin

Fourth Slowest Ager in World Siim Land’s 2025 Longevity Supplement Protocol

Does Melatonin Improve Cognition? What the Latest Research Says

Potential Impact of Inadequate Sleep on Lifespan: A Closer Look at Longevity Risks

Harvard Researchers Link Death from Sleep Deprivation to the Gut