In Episode 6, Dr. Bubbs is joined by expert Dr. Nanci Guest PhD to talk all things coffee and caffeine, such as: new findings on "fast" vs. "slow" caffeine metabolizers, impacts on performance (and which group has negative effects!), whether to choose supplements or coffee for elite performers and how your genes influence all of these parameters. As usual, check out my "Lay-Ups' and "Performance Hacks" at drbubbs.com/podcast.