Josh Clemente, founder of Levels, is a mechanical engineer and CrossFit-L2 trainer. At SpaceX, he led a team to develop life support systems that sustained astronauts on their trip to the International Space Station (ISS), the first new crew-carrying spacecraft since 1980. Josh has also spent time designing and building hyperloop technology and leading engineering for a company providing vehicle-based rescue systems for emergency response teams. In this episode, Sam and Josh talk about the health scare that inspired Josh to take a new approach to health, fitness, and nutrition. Josh speaks to the overall mission and goals of his company, Levels, and debunks common myths about nutrition. Finally, Sam and Josh take a deep dive into metabolic health, the importance of getting quality sleep, and the future of nutrition technologies.