Circadian rhythms play key roles in metabolic health and ultimately influence body weight, performance, and susceptibility to diseases like diabetes and cancer. Aligning food intake with circadian rhythms can improve many aspects of metabolic health. Some of these benefits might be due to the effects of melatonin, the "sleepiness hormone." Honoring the natural ebb and flow of this hormone and its role in metabolism is essential for good health. This Aliquot features circadian rhythm expert Dr. Satchin Panda, and cancer researcher Dr. Ruth Patterson.