Just 10 minutes two or three times per week will improve your flexibility in about three or four weeks. Stretching daily, however, will help you get the most benefit.
In addition to improving flexibility, stretching may reduce stress and make you feel more relaxed. “Stretching is the easiest exercise, and pleasant for most people,” Garber says.
Stretching regularly may also help prevent painful middle-of-the-night leg cramps.