Menstrual synchronization is a myth that just won’t die. But it’s been studied. What people experience is a mathematical phenomenon, not a biological one. For me read my latest: https://t.co/bJdjrIIomS

"Are you sure there's no other reason all the women I know are angry with me at the same time?" -Guy who refuses to be introspective for even half a second.

It was something I found odd about The Red Tent which I've just read - so the women had their periods with the new moon...

It's beat frequencies, isn't it? Good grief.

Hah, I knew it!