Yes your bras are more likely to weaken what holds your breasts up decrase circulation as well as distort the shape if you aren't wearing something that fits perfectly.
OK my breasts are big about 30gg I go more or less braless most times a little more with a bra during winter and they have if anything got perkier from doing this about a year so no wearing a bra doesn't actually prevent sagging unless doing sport just 8reduces the appearance of sagging while in that bra there are a couple study's proving this.
OK my breasts are big about 30gg I go more or less braless most times a little more with a bra during winter and they have if anything got perkier from doing this about a year so no wearing a bra doesn't actually prevent sagging unless doing sport just 8reduces the appearance of sagging while in that bra there are a couple study's proving this.