What are the secrets of women's breasts? Are women who love smoking prone to sagging breasts

Although the chest has been with us for many years, it grows healthy every day under our care. But you know what? We don't know much common sense about the chest. The following are the least known secrets about women's breasts:

1. The average weight of a woman's chest is about 500 grams, including 4% to 5% fat in the human body. When stimulated, the chest will also become erect.

The average length of the upper part of a woman's chest is about 1 centimeter. Currently, most American women's underwear size is 36c, compared to 34b 15 years ago.

3. 5% of newborns experience lactation within 2 months of birth.

4. Women who love smoking tend to have sagging breasts because the chemicals in tobacco can cause skin relaxation.

5. The chest has been becoming obese. A 20-year-old girl's chest is mainly composed of breasts, fat, and collagen. Breasts and collagen shrink with age and are replaced by fat.

Some women can achieve orgasm through chest stimulation. According to research by American sex educators Marshall Miller and Dorian Slater, 1% of women claim that stimulating their breasts can give them sexual pleasure.

7. The left chest is larger. A survey of 600 women found that the left chest is larger than the right chest, but it is difficult to distinguish this difference with the naked eye. The size and shape of the breasts on both sides are different.

8. Men should first pay attention to women's breasts. A study by the University of Victoria in New Zealand found that men first pay attention to women's breasts, and their eyes stay longer than other parts.