The Connections Between Rest and Exercise Rest and exercise are two main things you need to stay healthy. Rest helps mentally, emotionally and physically. For example, exercise leads to better rest, and rest leads to better exercise. Additionally, too much rest or exercise can damage your health. For example; too much rest can lead to overweight and lack of physical fitness. Exercising can cause an injury if it exceeds what your body can handle. Since these effects are negative, to prevent them you have to do both and not just one. Here are some ways rest is good for you physically. Some people train to build muscle and have great muscle strength. Even though it takes a lot of exercise to get your muscles where you want them, you still need rest. “Muscles get stronger during rest.” (Holt, Rinehart & Winston, 2007) In addition to intense exercise for the desired muscles, there is a cause resulting from long and hard exercise. When you increase the exercise it is called overload. "Overload tires your muscles." (Holt, Rinehart & Winston, 2007) During overload...