People who rise early rely more on fat as an energy source, and are often more active in the day, than those who stay up later. The findings may help explain why night owls are at greater risk of type 2 diabetes and cardiovascular disease, and may help doctors identify patients early on who are more likely to develop the conditions. One possibility is a mismatch between the time people go to bed and wake the next morning and the circadian rhythms that govern their body clocks, Prof Steven Malin said.Read Long Article
