If you're looking for a good night's sleep, you may want to reach for a piece of dark chocolate.
A new study out of Cambridge found that dark chocolate contains magnesium, an essential mineral that helps your body clock adjust. Magnesium can also help improve sleep quality.
Researchers said the magnesium can also be found in leafy vegetables, nuts and avocados.
Supplements are also effective, but researchers said it's better to get magnesium naturally from your diet.
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