[originaltext] Swimming is one of the best forms of exercise. It can improve

Swimming is one of the best forms of exercise. It can improve heart action. It also helps blood circulate. Swimming will develop strong muscles. It will even strengthen the lungs. People who are disabled and cannot enjoy other sports can keep their bodies in better condition by swimming. It is a good idea for parents to make sure that their children learn to swim at an early age. This will be an activity that the children can enjoy for the rest of their lives.