Exercise during pregnancy helps to alleviate many of the common problems of pregnancy. It improves circulation (which helps prevent constipation, hemorrhoids, varicose veins, leg cramps, and swelling of the ankles). It also prevents back pain by strengthening the muscles that support the back. Pregnancy often leaves women feeling less energetic, but regular exercise can give you more energy to make it through the day. Your strengthened cardiovascular system will give you more endurance, and stronger muscles will allow you to accomplish tasks with less effort, leaving you more energy to continue through the rest of your day. Some women enjoy prenatal yoga. Shop Yoga Exercise also allows you to sleep better. Most women have some trouble sleeping through the night by the end of their pregnancies. Exercising on a regular basis (and making sure it’s at least three hours before you go to bed) will help you work off excess energy and will tire you enough to lull you into a deeper, more restful slumber. Exercise has been shown to improve your mood. Also lessen mood swings, improve your self-image, and allow you to feel a sense of control. Exercise helps prepare you for childbirth. Some studies suggest that the fitness level of the mother can result in a shorter labor, fewer medical interventions, and less exhaustion during labor. Being in shape will not decrease the pain, but it definitely will help give you the endurance needed to get through labor. Most experts agree that gaining more than the recommended 25 to 35 pounds (for a woman of normal weight) during pregnancy makes it harder to lose the weight after the baby is born. By maintaining your fitness level during pregnancy, you are less likely to gain excess weight. Exercise also maintains your muscle tone and strength.