The provided podcast episodes discuss caffeine and its impacts on various aspects of health, including sleep, energy, metabolism, and addiction.

The episodes explore the history and origins of caffeine and energy drinks, as well as the potential risks and benefits associated with caffeine consumption. For example, the GUEST SERIES | Dr. Matt Walker: How to Structure Your Sleep, Use Naps & Time Caffeine episode delves deeply into the relationship between caffeine, sleep, and performance.

Additionally, the Caffeine: How Much is Too Much? episode from the Science Vs podcast takes a comprehensive look at the scientific research on caffeine, addressing topics such as the effects on the gut, brain, and sleep, as well as the potential for addiction and the dangers of energy drinks.