1, lying down to reduce your stomach means doing sit-ups, and you can also improve it by doing end-to-end abdominal exercises.

2, if the stomach is obese, it is likely to be caused by eating some high-fat and high-calorie foods in the diet, or it may be caused by lack of exercise. If you want to lose weight lying down, you can do sit-ups and abdominal exercises, which can consume fat and calories and help you lose weight _ thin belly, in addition, you need to strictly control your diet, try to avoid eating some foods with high fat and calories, and do more aerobic exercise, such as running and brisk walking.