Activia....Activia???

Every male reading this blog knows that there are things about women that men just don't know, and we NEVER find those things out. There's an upside to being of either sex---men think with their dicks first and foremost, but also perform extraordinary feats of strength and endurance. Women sometimes tend to get cranky every 28 days, but can cum ad infinitum and they tend to be better cooks and bakers than men do (tend to, not an absolute rule). Men tend to be open books, women have secrets that men never find out about. We never ever ever get clued in, and perhaps that's alright...nobody needs to know everything.
Last night, while watching tv, an ad for Dannon Activia came out, emceed by Jamie Lee Curtis, and it's part of a current ad campaign that I've seen, mock interviews with women of all ages. The idea behind the product is that it helps you to your normal regularity, and that if you eat Activia, you won't be constipated. The ads only feature women.
Did I miss something here? Is this a women only problem? Is it associated with menstruation? Do women wait and not go to the bathroom when they need to?
Can someone help me out here? I'm truly mystified.

Earworm-The Swingle Singers, A Capella Mozart