If you’ve ever wondered why there are such a disproportionate number of women at the gym, then maybe you can stop now: Scientists recently discovered that roughly 40 percent of women have experienced orgasms induced purely by exercise—no direct stimulation or even fantasies involved. (I don’t know anything about gyms, because I’m a comedy writer and don’t take care of my body.)The weirdest part is that no one involved in these studies could figure out why it was happening. The female body isn’t supposed to work like that, but apparently it does. Which just proves that we don’t understand the female body all that well. Thanks a lot, science.

3.Yawning

While under the influence of a certain medication, some patients suffer from a strange side effect where they achieve a mind-blowing (probably) orgasm every time they yawn. Of course, yawns are also contagious. And sometimes, people suffering similar symptoms start support groups for each other. There’s a huge potential for a ridiculous viral prank video, is what I’m saying.

4. Haircuts

Really hope there’s a barber reading this. Hello, barber! Sorry for making it so hard to concentrate while you’re at work tomorrow.It’s called “Autonomous Sensory Meridian Response,” and yes, it’s a real thing. ASMR is a phenomenon in which you experience an orgasm-like experience that happens entirely in your head, and it can be triggered by all kinds of weird things: Some people get them from haircuts, others from watching YouTube videos of people acting out various fantasies like pretending to check for lice or applying makeup. And then people watch them and have orgasms in their brain. This is a thing that happens. Maybe even right now, in the cubicle behind you. No, don’t look. This is not the kind of thing you want to know for sure.

5. Brushing the teeth

Epilepsy probably is not the most fun disorder to suffer from, but the symptoms are probably a little bit more manageable when they come with mind-blowing orgasms. A few years back, one woman reported that she would occasionally experience orgasms while brushing her teeth that were so powerful they left her in a “state of temporary impaired consciousness.” I’m not going to make any jokes though, because this actually sucked for the poor woman. Years earlier she had undergone a botched surgery that had left her incapable of achieving orgasm at all—at least until the tooth brushing thing manifested. After that, doctors probed her enough to learn that she was not capable of achieving orgasm any way that was not tooth brushing. She eventually switched to mouthwash.