Insulin levels wax and wane daily

Insulin levels wax and wane daily

Modern life may clash with hormone’s natural cycle

By Tina Hesman Saey, 16:45 PM February 22, 2013

Like the sun, insulin levels rise and fall in a daily rhythm. Disrupting that cycle may contribute to obesity and diabetes, a new study suggests.

Many body systems follow a daily clock known as a circadian rhythm. Body temperature, blood pressure and the release of many hormones are on circadian timers. But until now, no one had shown that insulin — a hormone that helps control how the body uses sugars for energy — also has a daily cycle. Working with mice, researchers at Vanderbilt Univers...

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