Письмо другу на английском языке что хорошего в спорте и что плохого! Пожалуйста 100слов

Hello,my friend! How are you doing? I am good, and begin running in the morning. I think it is very good for my health. The first plus of sport - is benefit for health. Minus of sport - is dead. For example dead of heart attack. The second plus of sport - it is good motivation for your body. It can become stronger with big muscles. Minus it is time consuming .