Getting enough sleep is very important. Reduced sleep can lead to diabetes and obesity. Sleep also helps learning and memory.

A recent study shows how the benefits of sleep occur. In a study by J. Broussard and coauthors http://bit.ly/QKf7b1 people were allowed either 4.5 or 8.5 hours of sleep. In people with shorter sleep, biopsies of fat cells from the area around the navel showed resistance to insulin compared to people with more sleep.

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