Heavy sleepers

A growing body of evidence shows that getting a good night’s sleep plays an important role in regulating the body’s metabolism.

Burning the midnight oil can leave you tired and grumpy the next day, dulling your mind and slowing your reaction times. But lack of sleep has consequences beyond the brain as well, with long-term sleep disturbances leading to metabolic problems.

Matthew Brady, a biologist at the University of Chicago in Illinois who studies the links between sleep and metabolism, puts it simply: “Fat cells need their sleep as well.” Read more in Nature.