Regular exercise can help you get a good night's sleep. The timing and intensity of exercise seems to play a key role in its effects on sleep. If you are the type of person who gets energized or becomes more alert after exercise, it may be best not to exercise in the evening. Regular exercise in the morning even can help relieve insomnia, according to a study.
This study takes a closer look at the relationship between exercise and sleep. The results confirm some of what we already know: A regular exercise routine does contribute to improved sleep. But this research also sheds some light on the complexity of the relationship between sleep and exercise. In particular, the study suggests that exercise may not have an immediate impact on sleep, but in fact may take several weeks or months to significantly change sleep. Sleep, on the other hand, may have a very short-term effect on exercise. According to these results, a poor night's sleep can have a negative effect on next-day workouts.