Today in Lady Hormones Be Crazy!: New research shows that right around ovulation time, women get more competitive with each other. I guess as far as hormonal side effects go, this one's not bad. I mean, it's not depression and despondency. It's not impulsivity. It's just wanting to be better at stuff than other women.…

Female bariatric surgery patients are reaping more than just the physical health-related benefits of weight loss. According to a new study, women who've had gastric bypass or Lap-Band surgery not only reported better sexual functioning, blood tests showed they had an improvement in reproductive hormone levels.

Hormone replacement therapy is really confusing because experts keep going back and forth about whether or not it eases the symptoms of menopausal women or threatens their health. A new study finds that both are true, which clears nothing up.

Over the weekend, two brave Jezebel writers attended the One Direction concert movie One Direction: This Is Us. This is their story.

Hormones is a drama of daily life set in a Bangkok high school. It has the same basic structure as the UK (and now, sigh, the U.S.)'s sexy teen melodrama Skins — it follows 9 teenagers as they go about their everyday lives. As such, it covers a variety of scandalous teen-related topics, including premarital sex,…

With only two weeks to go until Election Day, CNN's taking a serious investigative look into our country's undecided voters: hormonal women. I.e., all women. "New research suggest that hormones may influence female voting choices differently, depending on whether a woman is single or in a committed relationship," CNN …

Dear All The Single Ladies: Have you ever fretted that there's something weird and/or running through your veins that's stopping you from getting a partner? Well, stop worrying! Because there is, and it is making you want to hiss and throw seaweed at anyone who comes near you so that you can go home and wank in…

News from the world of science with some pretty grim implications for the global economy as it currently exists: men — rational, level-headed, decisionmaking men — aren't actually very well equipped to handle important financial decisions at all; it's like they're getting the male equivalent of their periods, but all…

Oh, bad boys, with their leather jackets, their greased back hair, their fear of commitment, and their ways of thrilling us while simultaneously making us feel shitty about ourselves. We just can't get enough of them! We've spent an eternity beating ourselves up over our perverse attraction to these cads, but now it…

When we talk about Hollywood's unrealistic beauty standards, we're usually talking about women. And with good reason — it's actresses who get relegated to mom roles at 35. But guys in Hollywood have standards to live up to also — and apparently they're using human growth hormone to do so.

Here's some bad news for testosterone already somewhat damaged reputation: the hormone apparently makes people less cooperative in groups. But there's a catch — the effect has only been observed in women.

New research has found that young women who drink caffeinated beverages on the daily experience changes in hormone levels. How much will your Starbucks and Diet Coke addictions affect your chemical ladyhood? Like being arrested in Arizona, the way caffeine treats your lady hormones depends on your race.

Queen Latifah may be awesome but she's the first to admit she's not perfect—and she wouldn't have it any other way:

Anti birth control types love to point out that women use birth control so that they can slut around without the risk of getting pregnant (God's most precious, precious punishment). But new research shows that this isn't the case at all; in fact, many women use the pill for reasons completely unrelated to harlotry.

Researchers have found that countries that have the highest rate of contraceptive pill use also have the highest prostate cancer mortality rate. Everyone freak out! Lady whore pills are killing the men!

Bad news, ladies on Depo Provera: your birth control may be impairing your memory. Bad news, ladies who are not on Depo Provera: you may actually be on Depo Provera, but you don't remember.