Circadian rhythms impact our health through the timing of meals. Research has shown that insulin sensitivity, or the body’s ability to efficiently use insulin to manage blood sugar levels, is highest in the morning and gradually decreases throughout the day. This means that eating during the first half of the day is better for managing blood sugar and supporting weight loss.

As a fitness coach years ago, I suggested frequent meals and snacks to help “boost” metabolism. Well, it turns out that this recommendation isn’t based on biochemistry, or much science for that matter. After all, grazing is for growth; it’s best designed for infants and adolescents, and not for mostly-sedentary adults.