Do periods actually sync up when we spend a lot of time together?
Growing up in a household with 3 sisters, this is something I heard CONSTANTLY. I also heard it a lot in tv and movies, but is it a real thing?
I definitely noticed some of our cycles lining up, but it wasn’t all the time, so it makes me wonder if it was just confirmation bias.
If it is real, why does it happen? And why doesn’t it happen with every woman we are around?