While researchers found significant associations between developing diabetes in night owls who worked during the day, they did not find an association for night owls who went to work later in the day or worked overnight shifts. One published in June found night owls were more likely to die early, mostly due to bad habits they developed when they stayed up late, such as drinking and smoking. A 2022 study determined 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, a precursor to diabetes. Night owls have higher levels of visceral body fat in the abdominal region, a key risk factor for type 2 diabetes and heart disease.

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Persons: ”, Sina Kianersi, ” Kianersi, Kianersi, Bhanu Prakash Kolla, ” Kolla, that’s, “, chronotype, Tianyi Huang Organizations: CNN, Brigham, Women’s Hospital, Harvard Medical School, Center for Sleep Medicine, Mayo Clinic, Internal, Nurses, BMI, Women’s Locations: Boston, Rochester , Minnesota