好的bra必須非常貼身舒服，就像穿雪靴。如果隨便穿不如不穿

https://www.realsimple.com/health/preventative-health/breast-health/what-happens-when-you-stop-wearing-bra#:~:text=So%2C%20the%20million%2Ddollar%20question,wrong'%20answer%2C%E2%80%9D%20Dr.

這裏列出了穿和不穿，各有優缺點

我最近5年改變了對文胸的看法做法，沒覺得受任何影響。我照樣打球跑步，還省掉了老在公眾場合要扶文胸肩帶的麻煩。