The first reason is that 30-year-old women are very likely to lack exercise intensity because they are disturbed by trivial matters of life and reduce their initiative in fitness exercise, which will of course make them very easy to gain weight.

The second reason is the decline of metabolism. With the growth of age, the functions of various organs of the human body have just begun to decline, and the metabolism of the relative human organs will of course decline, and the calorie consumption will also decrease, so that the accumulated human fat will live in the abdomen, buttocks and thigh roots very accurately. 、

Besides, women eat a lot after marriage. After marriage, women's diet structure is very easily influenced by their husbands. However, women's metabolism consumes much less calories than men. If they eat as much as their husbands, they will consume more calories than they need, which will lead to obesity.