It can help you to maintain a healthy weight, it is thought it helps balance energy for one. It also helps to keep the heart and circulation working effectively and this can reduce risk of heart disease. As exercise can help people to feel better it can also be good for mood. It is even though exercise can reduce risk of constipation and some forms of cancer
Our bodies are designed to be active. Our muscles, vital organs love activity as it stimulates genes and proteins which remodel and repair the body. Fitness increases the efficiency of the body so that every tissue/organ can function better. By increasing this fitness level it means that you have greater reserve for times of specific stress such as illness and injury and your body will respond and repair quicker.