One bad night’s sleep can make you put on fat and lose muscle mass

One sleepless night may be enough to make your body start storing extra fat and breaking down muscle, research suggests. This helps to explain why people with insomnia and shift workers with disrupted sleep patterns are particularly prone to obesity and type 2 diabetes, says Jonathan Cedernaes at Uppsala University in Sweden. He and his colleagues took fat and muscle samples from 15 healthy young men on two separate mornings – one after a good night’s sleep and the other after they lay awake al
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