A group of researchers at Northwestern University divided adults with insomnia into two groups.23 One group was instructed to exercise at a moderate intensity four days a week, while the other group did other fun things, like taking cooking classes or going to a museum. After four months, the people in the exercise group fell asleep faster and slept longer than the others. They also had improved mood, more energy, and an overall better quality of life. That’s one of the interesting things about exercise. When you start doing it, you might be more tired, but after a while, you end up with more
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