Swimming is movement through water using one's limbs, and usually without artificial apparatus. Swimming is an activity that can be both useful and recreational. Its primary uses are bathing, cooling, fishing, recreation, exercise, and sport.
Experts say that swimming is best form of exercise that tones your overall body muscles. It helps to tone your muscles, make your thighs, shoulders, arms and back stronger and increases the capacity and strength of your lungs. Swimming makes you feel worked out and relaxed at the same time. While swimming, the water seems to massage your muscles and clear your mind. Even after a vigorous workout, a session of swimming can make you feel refreshed and relaxed because it is estimated that the density of the human body is approximately similar to that of water. So the body is supported by the water and less force is placed on bones and joints. Therefore doctors advice swimming as an exercise for rehabilitation after injuries or for those with disabilities.