Health Conditions Caused By Wearing The Wrong Bra
Premature Sagging

Although the breasts gradually droop due to aging, wearing a supportive and properly sized bra could prevent premature sagging. Properly sized and sufficiently supportive bras may reduce the strain placed on a type of connective tissue in the breast called Cooper's ligaments. These ligaments are made of collagen and elastin. They gradually stretch and break down with aging and exercise. If bra cups are too small, the bottom of the breast could slip out beneath the bra band. The bra would not be supporting any of the breast weight, and the breast would move excessively. This places significant strain on the Cooper's ligaments.
Bra cups or bands that are too large could also strain the connective tissue. The breasts would move around too much inside the bra, and the band would not provide any lift for the breasts to reduce the stress on the Cooper's ligaments. During physical activity, the breasts move much more than with everyday activities, and they move in several different directions. This motion is especially pronounced with running and other high-impact exercises. This repetitive motion could cause the connective tissue in the breast to stretch and break down more quickly.
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