A 2022 study found night owls were more sedentary, had lower aerobic fitness levels, and burned less fat at rest and while active than early birds. Night owls were also more likely to be insulin-resistant, meaning their muscles required more insulin to be able to get the energy they need, the study showed. Studies have revealed night owls may take more risks and are more likely to skip breakfast and eat more later in the day. Night owls also have higher levels of visceral body fat in the abdominal region, a key risk factor for type 2 diabetes and heart disease. “The strongest reset for the circadian system is bright light,” Zee said.

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Persons: ”, Christer Hublin, Bhanu Prakash Kolla, ” Kolla, Phyllis Zee, Zee, ” Zee Organizations: CNN —, Finnish Institute of Occupational Health, Center for Sleep Medicine, Mayo Clinic, Center, Northwestern University Feinberg School of Medicine, CNN, Northwestern Locations: Helsinki, Rochester , Minnesota, Chicago