Ben Greenfield is a fitness and health blogger.

Tim Chang is the managing director at Mayfield Fund, as well as a biohacking, and consciousness-hacking, enthusiast.

Serge is a hardcore biohacker and serial entrepreneur. In this episode Kevin and Serge talk about Serge's extreme daily regimen of compounds to biohack every aspect of his brain and body. Serge has studied at Cornell, worked at Google, and was youngest in his class at Stanford Business School. Do not try any of this

New to Podcastnotes, Bulletproof Podcast. Our first set of notes digs into the microbiome, gut health, and fermentation. Summer Bock is a Master Fermentationist who guides people to experience a deeper level of healing. Her mission is to radically improve people’s health while empowering them to revolutionize the local food system using delicious, local and