7 Weird Things That Happen To Your Body When You Start Having Sex

Decided to start having sex recently?  If so, mazel tov, best wishes, congrats on the sex, etc. In any case, no matter what your congratulatory word of choice is, chances are good that you might feel a little different. I’m not speaking strictly emotionally hereyou might feel an emotional shift and you might not, since people react to having sex for the first time differently–but on a more, ahem, bodily level, since there are some physical changes that happen to most people’s bodies when they start having sex.

I should mention that many of the popular urban legends that you may have been led to believe about your body and the various ways it changes because of (consensual, agreed-upon) sex are mostly untrue. Your vagina will not stretch out beyond repair. You will not be irrevocably changed for the worse or better. You will not walk differently so that everyone can tell that you just hooked up with someone. You will not actually be much different than you were before, both personally and physically, except for the fact that you hadn’t had sex then and now you have. But there are some interesting (though, if I am being honest here, mostly non-consequential) things that can happen to one’s body both during and after the act of having sex that don’t happen when you aren’t having sex. So, check out these weird things that happen to your body when you start having sex:


Your Boobs Get Bigger

On a more, uh, physical note, sex can also (temporarily) enhance your breast size. Basically, when you're aroused, your blood vessels dilate and can cause the tissue in your breasts to get up to 25 percent bigger. This won't last forever, obviously--only during the time in which you're aroused--but it's cool to know that your boobs do look bigger during sex. If you're into that kind of thing.

Image source: iStock

Your Vagina Becomes More Flexible

Again--your vagina does not become a vast, cavernous maw when you start having sex. Instead, your vagina basically teaches itself to stretch on demand. When you become aroused, it gets stretchier and more adjustable in both the moment of arousal and later on, since your vagina's muscle memory helps store it.

Image source: iStock

Your Immune System Gets Stronger

According to some studies that were published last year, having sex frequently can actually boost your immune system. Apparently, women who are sexually active have a higher immunoglobin antibody--AKA antibodies that are produced by white blood cells and are critical for fighting off bacteria and infections--than those who are not.

Image source: iStock

You'll Be Less Stressed

In addition to lowering your chance of getting sick, sex can also reduce your stress levels--according to one study, people who had sex every day over a two week period had lower stress-related blood pressure issues. Sex can also stimulate cell growth in the brain's hippocampus, which is the part that helps monitor stress.

Image source: iStock

You Get Smarter

Need a brain boost? A study done at University of Maryland in 2014 found that sex can improve your brain's overall function and neurogenesis (the production of new neurons and brain cells) in the hippocampus, which is the part of the brain that forms long-term memories. This doesn't mean that you need to have sex to be smart, obviously,  but it's cool to know that there's a benefit to sex besides, you know, the obvious.

Image source: iStock

Your Gait Changes Temporarily

AKA you walk differently. Basically, your stride comes slightly more typically "feminine," in that you hold your head higher and sway your hips from side to side more. Does this mean that you live out the hidden subtext in Ariana Grande's latest single "Side To Side?" Uh, not really--it's not like you'll be walking around with a massive sign on your back that says "I just had sex." You'll just seem more confident and self-assured.

Image source: iStock

You'll 'Glow'

You've probably heard of an after-sex glow--which, as it turns out, is totally legit. During sex, blood flows to your head and face, causing your cheeks to flush, lips to get darker, and your entire face to have a little bit more of an overall glow. This isn't permanent, but it can add a little boost to your appearance for about a day or so.

Image source: iStock

Were you surprised by any of these things? Which ones? Let us know in the comments!

You can reach the author, Sara Hendricks, on Twitter and Instagram.

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