康医生:我刚上高三,胸部发育得很丰满。平时在上体育课时,我对各种运动项目都心有余悸,生怕运动中过于明显的胸部引来同学们的议论,于是,常有意回避参加体育项目,并扔掉了原来的c罩杯乳罩,穿上了紧身内衣和B罩杯乳罩,把胸部束勒得紧紧的。我听说长时间过紧地束勒胸部会影响到健康。请问这是怎么回事?曹婧(天津) Dr. Kang: I just went to the third year, my chest was very full. When I was in PE class, I was always worried about all kinds of sports. I was afraid that the obvious chest in class led to the discussion of classmates. So I often avoided the sports items and threw away the original cup bra, Tight underwear and B cup bra, the chest bundle tightly. I have heard that straining my chest for a long time can affect my health. What is going on? Cao Jing (Tianjin)