I don't know about you, but I personally would rather not be 17 again — yes, I had all the energy in the world, but also, I was a literal teenager more than likely making some very questionable decisions. The various "horror stories" about how our bodies change as we get older more often than not center on how our biological clock starts clicking, and are designed to make women feel petrified about losing societal "value" once they're no longer nubile ingenues. However, being in your 30s means some very interesting and surprising implications for your health; the ways your body changes in your 30s is fascinating, and important to be aware of.
It's not all physical changes, either; your mental health can shift a good amount when you hit your 30s, as does your libido, your hormones, and even your bones. But it's not all "downhill" or "bad news"; change is natural, everybody experiences it, and sometimes, it can even be a good thing. Anybody at your thirtieth birthday party who keeps cheerily telling you that "it all gets worse from here" should be banned from getting a piece of cake and kicked out the door. Here are five surprising ways your body changes in your 30s that you probably never thought of.