Do bras make your boobs sag?

No, bras do not make your boobs sag. Wearing a bra can actually help mitigate sagging by minimizing bounce. While some sagging is genetic, a portion of ptosis can occur from excessive bounce and stretch. Over time, stretching of the skin can lengthen Cooper’s ligaments (the fibers that anchor breasts to the chest wall). When those ligaments lose their elasticity, you’re left with a sagging effect.

Larger breasts will naturally bounce and stretch more than smaller breasts, which is in part why bigger busts are at increased risk of sagging. And, of course, breasts are at their bounciest during a high intensity workout. Investing in a properly fitting and secure sports bra is a great way to slow the effect of sagging over time.