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.

Are you more like Hozier’s lyrics, going to bed at 3:00 am, or the couple asleep early? The chronotypes of the early bird, a night owl, or somewhere in between, are formed through sociocultural influences, family dynamic, and habitual patterns over time. These tendencies carry a perceived association. The late-night person may be seen as easy-going and open to adventure, while the early riser may be viewed as more rigid and conforming.

A chronotype defines the timing of sleep, waking hours, and food and beverage consumption. Chronotype is linked to circadian rhythms and physiological functions in the body. Early birds may have some advantages over night owls regarding long-term health outcomes.