Obviously they perk up when its too cold…or if you’re getting too hot (you know what I mean).
But I’ve noticed that they seem to just have a mind of their own, especially on the day I wear a thin white t-shirt.
Scientists from the Karolinska Institutet have explained that the neurons just turn them on and off as they please, which doesn’t bode well for any free-the-nipple-ers out there (especially the lovely Jennifer Aniston).
I’m glad science is really tackling the big stuff here…
One thing we found was that goose bumps and nipple erection are caused by neurons that are specialised to regulate these functions by controlling the erectile muscles in these tissues.
Here’s a reminder of George Clooney’s beautifully pointy nipples on his 1997 Batman costume:
It looks like there’s nothing we can do to stop them behaving in this way then, so we might have to just embrace the erection.