The treatment of obesity mainly involves controlling diet and increasing exercise, which means "watch your mouth and move your legs." Therefore, running is definitely an option. However, for those who are severely obese, with a BMI over 30, excessive running might be too much for the knee joints to handle. For obese patients, brisk walking is primarily recommended. Another good form of exercise is swimming, which can protect the joints under the pressure of water while also burning calories. Therefore, people with obesity can run, but it depends on the situation and should not be rushed. For those who are severely obese, swimming is recommended as a way to help reduce weight.