@chyna haha, actually going braless MAY help with that more so than wearing a bra. Hey, I was raised by hippies, I can’t help but hate them.
Sports medicine specialist Prof. Jean-Denis Rouillon carried out a 15-year study to assess whether bras cause sagging. The study involved 330 females aged 15–35 years.
Rouillon’s findings suggested that wearing a bra can weaken the chest muscles, thereby promoting sagging. Rouillon concluded that going braless encourages the chest muscles to work harder to elevate the breasts.
There is no official published study of Rouillon’s findings and no peer review. As such, it is not possible to evaluate the validity of the research.
https://www.medicalnewstoday.com/articles/are-bras-bad-for-you#sagging