Einföld googlun mundi hafa leyst málið fyrir þig á innan við tíu sekúndum: Weight bearing exercise tears down muscle so it can rebuild and become stronger. Weight lifting also builds bone, thereby offering a form of protection against osteoporosis. Another of the benefits to exercise is that our internal organs function more efficiently. Brisk movement, also known as aerobic exercise, gets the heart pumping, which aids circulation and keeps the body functioning at a healthy level. The...