A particularly effective method, doing sit-ups and sit-ups, is more effective than sit-ups. The only difference from sit-ups is that the upper body does not sit up completely during exercise, and the angle between the upper body and the ground should be 15 degrees. When doing this exercise, you will find that the waist and abdomen need a lot of strength, so it hurts. & ltbr/>； You need to do it five times a day, 30 times each time, and the interval between five times should not exceed 1 minute. After finishing, gently massage the waist and abdomen. & ltbr/>； This is taught by sports professionals. As long as we persist in this sport, it will have an effect within half a month. But first of all, people who have no perseverance should not try, because it is really painful. & ltbr/>； Fat is most likely to accumulate in the abdomen. The fat here is a veritable "confidant" because it is close to the heart and is most easily mobilized into the blood circulation. Therefore, when the abdominal circumference is above 90- 100 cm or the ratio of abdominal circumference to arm circumference is greater than 0.9 for men and 0.85 for women, abdominal fat must be reduced. & ltbr/>； How can we quickly reduce the excess fat in the abdomen and make the abdomen look flat? The following is a quick-acting abdominal flattening method, which can be effective in 45 days: