Can inactivity cause constipation? Lack of exercise. Inactivity or long periods in bed due to illness or following surgery may cause constipation. Doctors can suggest medicine for people who stay in bed and suffer from chronic constipation. Being more active, when possible, is best.
Can lack of exercise cause hard stools? Exercise. Lack of activity, especially exercise, is one of the main factors that lead to constipation. Aerobic exercise, which increases both heart and breathing rates, causes natural movement of the intestines and makes passing stools quicker and easier.