Men Can Live 20 Years Longer... But There's A High Cost

Men, what would you be willing to give up to live a couple decades longer? Think carefully before you answer. Research has shown that men who are castrated may have significantly longer lifespans. Here's what we know. » 1/08/15 12:30pm 1/08/15 12:30pm

Does sex affect your athletic performance?

It's no mystery at this point that the Olympic Village is the epicenter of world-caliber hard-body-on-hard-body action – but does all that next-level sex have a negative (or positive) impact on athletic performance? » 2/15/14 2:30pm 2/15/14 2:30pm

Why do we have sex at night?

Humans can have sex anytime we damn well please – so why do we mostly do it in the dark? Here's what science has to say about our preference for nighttime hookups. » 6/27/13 12:44pm 6/27/13 12:44pm

Bad news: the chemicals in your IV bag could be giving you diabetes

Ever heard of phthalates? They're a class of chemicals used to soften plastics found in everything from household containers to medical supplies, and to stabilize colors and fragrances in cosmetics like lipstick and perfume. » 7/30/12 2:01pm 7/30/12 2:01pm

Redheads experience pain differently than the rest of us

It's melanin Monday (not a real thing — but it should be), time to brush up on your knowledge of all things pigment-related! People with fair skin and rosy locks get their distinctive looks from mutations in the gene that codes for melanocortin 1 receptor, a protein that aids in the synthesis of the pigment melanin;… » 3/05/12 7:00am 3/05/12 7:00am

Gelada monkeys offer evidence that abortion is part of evolutionary…

The story begins with an insurrection, and ends with infanticide. A male gelada monkey, unsatisfied with his social standing, challenges the authority of a superior gelada. The payoff: a so-called "reproductive unit," comprising a dozen females, that will mate with him and him alone. If the usurper is victorious, he… » 2/23/12 12:00pm 2/23/12 12:00pm

The Biologist Behind One of the Strangest Feuds in Scientific History

Atrazine is an herbicide marketed by agribusiness company Syngenta. It has been shown to "chemically castrate" frogs, turning males into females that are capable of rearing offspring; it is associated with birth defects, low birth weights, and menstrual problems in humans; and its use has been outright banned by the… » 2/06/12 1:36pm 2/06/12 1:36pm

Even in the real world, women on the pill may choose dependable men…

Here's more evidence from the front lines of science that you can't have your cake and eat it, too. A recently published study out of Stirling University shows that women who are on the pill when they meet their partners are less likely to be satisfied with sexual aspects of their relationship, but more satisfied with… » 10/13/11 10:35am 10/13/11 10:35am

The more feminine you look, the more children you want. Wait, what?

Does not wanting a baby make you less feminine? Or does being less feminine (be it in the way you look, or in your hormone levels) make you less likely to want children? » 10/11/11 11:19am 10/11/11 11:19am

A mutant that kills cancer

A medical researcher has discovered that a mutant gene once believed to cause cancerous tumors is actually the perfect weapon to stop them. Weirdly, it's possible that benign tumors may be the key to stopping cancer. » 6/06/11 8:00am 6/06/11 8:00am