Why do you wear a BRA?

Most of my indian frenz did ask me why do the american girl doesn't like to wear a bra?
After a while i think i shall answer that question by asking this question:
Why do you wear a BRA????? ..and she..took a while to answer it..welll let me give some answer on this :

1. "Because breasts need to be supported." Is it true????
There is no medical reason to wear a bra. "...wearing a bra... has no medical necessity whatsoever", says Susan M. Love, M.D in her "Dr. Susan Love's Breast Book". Breasts were fine before the invention of brasserie. This is similar to the myth that women supposedly need corsets to support their stomach muscles.

Also there is no proof that bras would prevent your breasts from sagging. Your breast is supported by ligaments, and if breasts ligaments act anything like other bodily ligaments, they may atrophy from the constant unnatural support from the bra.

Someone might say, "I'm large-breasted and I need a bra to support the weight of my breasts." That may be so; but you can experiment going without bra and see how you feel. One medical doctor made a study on shoulder pain treatment in women with large breasts. The patients removed the weight from their shoulders for a period of two weeks, either by going braless or by wearing a strapless bra. Only one woman chose a strapless bra and all the others went braless. Quoting the article, "Long-term outcome was presence or absence of muscle pain and tenderness. Seventy-nine percent of patients decided to remove breast weight from the shoulder permanently because it rendered them symptom free."
(Ryan, EL, Pectoral girdle myalgia in women: a 5-year study in a clinical setting. Clin J Pain. 2000 Dec;16(4):298-303.

If you need a bra, find a bra that is not tight and without side panels or under wires, because under wires can create extra pressure and tightness. You could get it fitted right with professional fitter. Also try give your breasts as much 'free time' as possible. Take your bra off whenever you can, and at least do not wear it to sleep.