Can being a night owl increase the risk of weight gain?

By Jessica Freeborn, Jul 20, 2026

Alex Dimitriu, MD, double board-certified in Psychiatry and Sleep Medicine and founder of Menlo Park Psychiatry & Sleep Medicine, likewise not involved in this study, also noted that it “confirms a lot of what we have been hearing. Indeed, late evening types tend to eat less healthy foods after sunset, have a shorter period of fasting during the night, and also have a higher BMI and body fat percentage than people who go to bed earlier.”

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