Oh good, something else we can blame on estrogen: severe allergic reactions.

For women who suffer from atrophic vaginitis, or vaginal atrophy, sex is incredibly painful, but hopefully, help is on the way. The FDA has just approved a new procedure to combat the condition that consists of firing tiny lasers in your vagina. Sounds pretty fucking metal.

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.

For years, the conventional wisdom has held that men's declining "vitality" in later life—pot bellies, loss of muscle tone, sexual difficulties, etc.—was due to their falling levels of testosterone. But new research indicates that estrogen may play a more prominent role in male development than previously thought.…

Italian scientists have announced that they've discovered a positive correlation between women being remarkably good looking and the likelihood that she'll have one of the worst kinds of lady pain. Leave it to the home of Silvio "Bunga Bunga" Berlusconi to commission a study that tracks the relationship between a…

The world's nations are coming together to create one all-powerful estrogen-free vaginal ring! Well, kind of: researchers from the Dominican Republic, Chile, the U.S., and Edinburgh are working together to design a ring containing ullipristal acetate (the same drug in the emergency contraceptive ella) that would be…

Depo-Provera, the injectable contraceptive that's used by roughly 1.2 million women in the U.S., is incredibly convenient, effective, and relatively affordable. But according to a new study, it has a very scary side effect: doubling your risk of breast cancer. But before you freak out because it's coursing (or has…

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.

A new study found estrogen may help cancer spread in the head and throat by triggering an enzyme that increases the movement of precancerous cells. Scientists hope to find a way to deplete the enzyme and prevent oral cancer.

Okay, smart-er. That's the good part.

A new study says taking combined estrogen and progestin to combat menopausal symptoms ups not just women's risk of breast cancer, but their risk of dying from it. But some doctors think new, lower-dose therapies may be safer.

So it's very rare (affecting only 2% of middle-aged men), but there are some symptoms which, when concurrent with lowered testosterone levels, indicate men can have menopausal issues. And that's all the information you need to turn the joke-cracking tables.

Although much substance abuse research has been done on men, women can be addicts too. And studies show that female hormones may influence dependency.

In middle-aged men, belly fat, low libido, high cholesterol, and osteporosis may all be caused by an excess of estrogen, which the Daily Fail calls "insidious." Guess they didn't hear about how hip guts are now. [Daily Mail]

File this under the charmed physiological lives of men: Dudes may be able to protect themselves from contracting HIV by rubbing some cream on their dick heads. Dr. Andrew Pask, an Australian zoologist at the University of Melbourne, has discovered that rubbing topical estrogen on the tip of the penis "could induce a…

Though Scarlett Johansson is known for her deep and torrid voice, a new study shows that women are most attractive to the opposite sex when they are ovulating — because their voices go up in pitch. Researchers Nathan Pipitone and Gordon Gallup recorded women counting from 1 to 10 at different points in their menstrual…

Birth control options for women over 40 are expanding thanks to new low-estrogen birth control pills and increased research into methods that don't involve tube-tying. Birth control pills with high estrogen levels are not recommended for women over 35 since they pose cancer and blood clot threats, but low-estrogen…

Lots of anti-birth control pill news on the wires today. The first story comes from the Economist by way of Canada: A Canuck scientist has found that extra estrogen, which can get into rivers and lakes through the toilet-flushed urine of birth control takers, kills fish. Karen Kidd, an ecotoxicologist at the…