Why is physical play and exercise good for a child's mental health?

I have looked on the internet, but all that comes up is the same one-helps you with your school work. I need help, this is my coursework and it's due in on the 27th, so I need help.|||Physical play can include activites that involve pretend play, which is a great way for children to use their imagination. It also allows them to interact with other children, and to learn how to do things. Physical play can also allow a child to show emotions, such as happy. This helps their mental health tremendously. Also exercise can be in a group activity, making the child feel involved and loved. If you isolate a child and do not allow them to interact it can cause them to feel alone, left out, sad, this will have a great impact on their mentality.|||Physical play and exercise is good for developing the child's mental health with the fact that it creates endorphins which is a good rush and it allows for children to have good thoughts.|||If you have to give your child a healty brain and body, then play some music and make him dance.|||It's not. They should be locked up until they are 18.|||Play catch and cook with your husband|||One word - endorphins.