Will Exercise Really Make Your Boobs Smaller?

Hi Heather,

I am 14 years old and I have big boobs. I wear a 36C and I want to shrink into an A size bra. Would exercise help my boobs get smaller? I am starting a workout plan to see if it works but does it really work?


I know this might be an annoying thing to wear, but disliking your breast size is basically a rite of passage for any female. Boobs are one of those things that make up the phrase “the grass is always greener.” Girls with small boobs wish they were bigger, girls with big boobs often wish they were smaller. Unfortunately, you can’t manipulate your breast size unless you’re willing to go under the knife (plastic surgery), and while there’s nothing wrong with doing that, it should be a last resort. That being said, can exercise make your boobs smaller? Let’s consult a professional.

I too have heard the saying that working out can make your breasts shrink in size. We’ve all heard at least one girl complain about how her exercise regime got rid of the extra fat she really wanted – the fat in her boobs. So is that true? I asked my friend Dr. Sherry Ross for advice – she’s from the site HelloFlo (a monthly period package you need in your life ASAP) and always has all of the answers. Dr. Ross said, “Exercise can help strengthen your chest muscles, which are underneath the breast tissue, but is not likely to reduce the size of your actual breast. Since breasts are made mostly of fatty tissue, muscle strengthening will have minimal effect on breast size… unless you are a bodybuilder.” While working out might make your boobs a little bit more firm because of the firmer muscle underneath, it isn’t going to shed the fatty tissue there.

But. BUT. Dr. Ross adds, “Aerobic exercise that helps control your body fat and weight may help in reducing the overall size of the breast.” In other words, cardio can get rid of fat, and could possibly make your boobs smaller. Unfortunately, there’s one more butt: “With that said, I don’t want you to think that regular aerobic exercise will decrease your 36C to an A because that is impossible.” Basically, exercise might make your breasts smaller, but there is no guarantee. Not only does spot training (working out to change only one body part) not work, but exercising only so your boobs get smaller could easily be a fail. If you want to try it, go for it! Exercise is really good for you, and you’ll enjoy other benefits. But don’t do it just to make your cup size shrink.

On top of that, Dr. Ross adds that, at 14-years-old, you boobs might just get bigger. She says, “Breast development begins around 10-years-old and ends by 17 or 18 years. Since you are 14-years-old, your breasts still may be growing.” Sorry! It looks like, for now at least, you’re going to have to adjust to the size you have. If you still hate them when you’re older, you can talk to a doctor about surgical possibilities, but until then, try to get more comfortable with them.

What’s on your mind? Heather can help! Send her your question at heather@gurl.com You can also reach our buddies at HelloFlo with questions about your body or health. Just ask Dr. Flo at HelloFlo!


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