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The ultimate reference guide, rebuilt for 2025 with the latest must-have knowledge.

"I'm a best-selling author, public speaker, anthropologist, and consultant.

I teach people about the art and science of optimizing their health and performance. I've written many books about nutrition and biohacking. I speak at the world's largest biohacking conferences.

As a kid, I realized that to change the world for the better you have to change yourself. That's why I decided to help others achieve that.

The longest-living people stay healthier for longer than the general population. They get the same chronic diseases as the rest of us but they do so a few decades later. Studies also find that centenarians and their offspring have a much lower biological age and a significantly lower risk of chronic diseases. It's their genetics that slows down their biological aging and in so doing reduces the risk of chronic diseases."