Young people can lose weight through proper fitness. Scientific methods to lose weight include: keeping your mouth shut, stretching your legs, starting with balanced nutrition, eating less food that has little impact on human health, eating less animal fat or greasy food, replacing animal oil with vegetable oil, eating less food with high cholesterol, eating less sugar, eating less salt, eating more fruits and vegetables, drinking water and drinking alcohol. In addition, paying attention to exercise and increasing the consumption of physical activities can scientifically get rid of excess fat. The most basic aerobic exercise includes brisk walking, cycling, dancing, jogging, mountain climbing, boxing and other outdoor activities.