By incorporating these expert-backed habits into your nightly routine, you may find it easier to fall asleep, stay asleep, and wake up feeling refreshed.

You can either include them in your custom Sim family or adopt them in your family. They are sure to keep you busy as they ...

While the research is compelling, "the quality of a lot of associated studies is limited," says Nigg. "And we have never had a large population trial in the United States—only in Europe ...