The podcast episodes explore the role of brown fat, a distinct type of fat tissue from the more common energy-storing white fat. Brown fat is specialized for generating heat, and plays a key role in regulating metabolism and body temperature.

The episodes discuss the latest research into brown fat, including its evolutionary origins, how it can be activated to boost metabolism, and its potential applications in areas like drug delivery and treating metabolic disorders. Examples include Putting mysterious cellular structures to use, and when brown fat started to warm us up and The Surprising Secrets of Fixing Your Metabolism.