Menstrual cramps suck—especially when they're the kind that accompany labor because you didn't know you were pregnant in the first place.

Don your most festive Diva Cups, ladies, because America is all about periods right now.

A growing number of experts are arguing that—as far as mental health is concerned—pre-menstrual syndrome is a culture-bound syndrome, meaning that it's diagnosis is based on societal expectations of how women should behave and feel, instead of biological reasoning.

Gosh, women and their messy emotions and crazy behavior while PMSing. What a womanly thing. But guess what?! Guys PMS, too. Joke's on you, dudes, because you can also feel crazy emotions and it sucks and can we please just hug and eat ice cream together?

After more than a decade of studying over 3,000 women, researchers have found that dietary choices — particularly potassium and iron intake, can have a strong effect on how women experience premenstrual syndrome. Women who consumed more iron, either through food or supplements, were less likely to suffer from PMS,…

As a feminist, period-haver, and combination bitchy loud-mouth/soft-hearted doormat, I have a complicated relationship with PMS. On the one hand, fuuuuuuuck PMS! The idea that my moods, which arise from my incredibly complex, stressful, dynamic life, can be reduced to some hormonal flux at the whim of my reproductive…

"Are you a man living with PMS?" asks a new ad campaign. The product for sale is milk. But don't feed the trolls.

This Chilean ad for Kitadol menstrual relief pills features a burly Viking wife and the tag line "Get her back." The "insensitive husbands who buy menstrual meds" market must be larger than we thought.

Betty Crocker has been around for 83 years. But in corporate America age does not equal wisdom, and so the company's running an awful OMG I HAVE PMS MUST EAT BROWNIES campaign with their compelling new PMS SOS iPhone app.

In a survey by GenderStereotypes.com UKJobs.net, a majority of respondents said they prefer male bosses because women are bitchy, unreasonable, and always on their periods.

Isn't this just so true, ladies? I know that when I reach for the Midol, it's because I want to be the girl my boyfriend likes to be around, and not because I'm bleeding and it hurts. [VintageAds]

Evidently this is what men think we look like during PMS. Not that I'd mind being as intimidating as this dude once in awhile. From the same Chile team that brought you the fat cuckolded dogs. [Copyranter, Earlier]

Universal truth: PMS sucks. But have you ever thought that your monthly pair of crazy pants is, actually, "a compass that navigates one's emotions, needs and desires?" Yeah, me neither.

Scientists have found a gene that may cause the extreme form of PMS known as premenstrual dysphoric disorder (sometimes treated with Prozac, pictured). But should the disorder be considered a mental illness?

There is nothing the makers of feminine hygiene products like to promise more than a return to "being yourself," in the midst of a rough PMS cycle. In these vintage spots, cheerful women make promises, while crampy women flip out.

UK woman Marie Seward suffered from 10-12 days of extreme PMS every month, but didn't realize her symptoms weren't normal until her husband of 17 years walked out on her.