I say that i have got to side with Provacativa. Think about it... If you kept your arm unmoving, tightly wrapped in a sling at all times, wouldn't it makes sense that it would get limp and atrophied? Cramming our ladies into a tight "support system" that stops their natural movement also stopped circulation and lymph flow, as well as allowing the supporting tissue within the breast to get weak. That equals flat, saggy boobs. I know because I have been there. I had some SERIOUS whoopie cushion breasts after breastfeeding my son. When I got pregnant with my daughter, I started going sans-bra. After she weaned, the were saggy, but no where near as flat and limp as after my son. Surprisingly, I started getting firmer and higher about a year ago... This is a good 4+ years without a bra. I was supplementing Iodine(I suggest every woman do some research on the breast health/iodine connection) as well as mega dosing Vit-C, to help with the detox reaction from my iodine supplementation. I had no clue that it boosted collagen production... Maybe that is what did it?
I think it was a combo of the two, as Iodine is an especially "feminine" nutrient... It concentrates in our breasts and reproductive organs. I am preggo now, so the boobs are all pumped up for lactation, but I don't fear them going all flat and saggy when I am done. I feel like allowing them to hang as well as supporting them nutritionally is the key... Sure, they are "mature". These aren't my teen-age duds. BUT they don't look bad at all, and they feel great. M husband was amazed that they were actually getting BETTER... He's the one that noticed in the first place. If I could tell a woman unhappy with her breast anything, it would be to supplement and get rid of the boob-crutches.