Exercise releases hormones that increase the ability for muscles to absorb amino acids, which helps increase muscle mass and it reduces their breakdown (Semeco). In other words, exercising helps build and maintain muscles. Arlene Semeco later states that exercise builds bone density when someone is young and helps prevent osteoporosis when they are older. Exercise can also reduce pain, including chronic pain, by increasing pain tolerance and decreasing pain perception (Semeco). Exercise is not only an efficient pain reliever, but it also can relieve chronic diseases.
Lack of exercise is the main cause of chronic disease (Semeco). Exercise improves insulin sensitivity, body composition, cardiovascular fitness, blood pressure, and blood fat levels (Semeco). A lack of exercise will negatively increase or decrease these improvements which can lead to serious health issues. For example, when someone does not exercise, they can have an increase in belly fat, which can increase their risk of type-two diabetes, heart disease, and early death (Semeco). While exercise can improve serious health issues, it can also benefit less serious