Does running make your breasts sag?

Running has always been a popular form of sport. It has a strong appeal whether in competition or in terms of physical fitness. Compared to men, running may be a little inconvenient for girls. Because some girls have well-developed breasts, their breasts will shake up and down while they run, which can easily affect the running process. Therefore, some people worry whether running will cause their breasts to sag.

Research results from the University of Portsmouth in the UK pointed out that when women run, their breasts do not just sway from side to side, but instead sway in the shape of an "8". This phenomenon will accelerate the damage of the suspensory ligaments of the breasts, thereby causing sagging breasts.

The test found that when the average person runs one mile (1609 meters), their breasts will swing 135 meters. Even if the cup size is 34A, the breasts will move 42mm away from the body during exercise. For women with a cup size of 36C, their breasts will bounce up and down about 119mm during exercise. This large swing will cause permanent damage to the elastic fibers in the breasts, resulting in sagging breasts.

This is why all major sports brands have launched "sports bras". A good sports bra will help you achieve good support during exercise and minimize the shaking of your breasts while running.

A pair of D cup breasts weighs approximately 6.8 to 10.4 kilograms. That's enough to pull your torso forward, forcing you to run with a hunched-over posture, reducing the efficiency of your stride and increasing your risk of injury, McGhee says.

If you haven't noticed, the only things keeping your breasts from sagging while running are your bra straps, which bear a lot of the weight. When the shoulder straps are too narrow, the pressure can be so great that it not only causes dents in the shoulders, but can also compress the brachial plexus and cause numbness in the pinky finger.

The less your bra moves while you run, the less friction there is. However, the larger your breasts are, the more difficult it is to prevent movement. If you choose the wrong underwear, it will shake a lot while running and easily rub your delicate skin.

For women who exercise, it is very important to protect their breasts by wearing a suitable sports bra during exercise. There are roughly two types of sports bras currently sold on the market: one is shaped like a vest, using a large piece of cloth on the chest to completely cover the chest, keeping the breasts as close to the chest as possible to suppress the bouncing of the breasts during exercise. The other type has cups that wrap around and hold the breasts in place, and some contain soft steel rings for added support. Expert opinion: Vest-shaped sports bras are more suitable for women with small breasts and bra cups of A and B; women with cups above C are suitable for sports bras with cups.

From the above, we can see that running has a certain impact on women with more developed breasts. If no protective measures are taken for a long time, it will cause sagging breasts. Therefore, women need to wear sports bras with cups for protection to avoid causing harm to the body. For women whose breasts develop more slowly, the impact is still within an acceptable range.