Is Staying Up Late Unhealthy?

Night owls were more sedentary, had lower aerobic fitness levels and burned less fat than early birds in the study. People who have a regular sleep schedule tend to exercise more when they go to bed at 5.30 p.m., he says. But if you stayed up late and still got your 30 minutes of walking around or like 10,000 steps, could you theoretically be as healthy as someone with a different sleeping time schedule? "I personally don't feel like it's the same"