Exercise is a key role in a person's health. It can determine the person's chances of getting diseases and becoming sick. Regular exercise can also help lose weight and prevent illnesses. According to medlineplus.gov, "Exercise can lower your blood sugar level and help your insulin work better." With lower blood sugars and a better working insuline the chances of getting a heart disease and diabetes are lower. Exercise can also help increase age and longer living while also having better sleep. (medlineplus.gov) The minimum a person should exercise depends on the person's health and current state of being. A person should start at either a light aerobic exercise of walking or jogging for about 30 minutes 5 days a week or more moderate exercises like biking or cycling for about 30 minutes 3 days a week. (nebh.org) People don't need to exercise a lot every single day for an hour at a time. According to kaiserpermanente.org, "Studies have shown greater health benefits from light to moderate exercise simply because people are most likely to stick with it." Overall, studies and research have shown that exercise is a necessary part of a person's life and needs to be done to keep a healthy and long life.