In the United States, more than one in three adults is considered medically obese. Increased weight can increase the risk of diabetes, heart disease, cancer, and depression, among other health problems. One study found that obesity can also shorten one's lifespan by fourteen years, in addition to reducing one's quality of life. It can be challenging to understand how to lose weight, but working with a doctor to create a medical weight-loss plan can make it a lot easier.   You can reduce your chances of developing those health problems if you lose the extra weight. Having a healthy weight can reduce your blood pressure and cholesterol levels. Additionally, it can reduce the risk of diabetes, gallbladder disease, heart disease, stroke,  and osteoarthritis.