300
Healthy muscles let you move freely and keep your body strong. They help you to enjoy playing sports, dancing, walking the dog, swimming, and other fun activities. And they help you do those other (not so fun) things that you have to do like making the bed, vacuuming the carpet, or mowing the lawn.
Keeping your muscles healthy will help you to be able to walk, run, jump, lift things and do all the other things that you love to do. Exercising, getting enough rest, and eating a balanced diet will help to keep your muscles healthy for life.
What is keep your muscles healthy.