Girls should wear bras in a timely manner during breast development. Because breasts have no muscle tissue, only glandular tissue and fat, they are supported by connective tissue. This connective tissue acts like a taut web of fibers that provides support. However, unlike muscle tissue, it has no elasticity. Therefore, when a girl's breast development matures, if she does not use a bra to support the breasts, the burden on the breasts will be uneven, hindering the normal blood circulation in the breasts, causing some blood stasis, and causing breast disease. If you don't wear a bra during strenuous exercise, your breasts may be easily traumatized, and any trauma may cause mastitis. When is the most appropriate time to wear a bra? Use a soft ruler to measure the distance from the upper bottom of the breast through the nipple to the lower bottom of the breast. If it is greater than 16 cm, you can wear a bra. Generally speaking, when a girl reaches the age of sixteen or seventeen and her breasts develop to a certain extent, she should wear a bra. However, wearing a bra too early will affect the normal development and future function of the breast glands. Wearing a bra is also a matter of knowledge: 1. The bra should not be too tight. If it is too tight, it will compress the nipples and make the nipples sink, making it difficult to breastfeed in the future. 2. The bra straps should not be narrower than 2 to 3 centimeters, nor should they be too short. If it is too tight, there should be elastic bands or adjusting buttons; 3. It can be slightly tighter during exercise and relaxed after exercise; 4. Take off the bra when sleeping at night to ensure smooth breathing and blood circulation during sleep. In addition, you should choose a bra with the right texture and color according to the season, and wash it frequently to keep it clean.

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