We spoke to a mountaineer about the effect high altitude has on blood pressure... and dicks.

It’s a question that has baffled scholars for centuries: is pain a bodily experience or a mental one? Rich Harrison explains why this is such a complex problem to solve

In the early 1950s, a young lieutenant realized the fatal flaw in the cockpit design of U.S. air force jets.

While identical twins are seen more as an accidental splitting of a single egg, there could be a good reason mothers produce non-identical twins from two separate eggs.

New research suggests mate choice continues after sex because human eggs can favor some sperm over others. An analysis of the microscopic dynamics between sperm and egg has revealed a fascinating twist to a phenomenon called female "cryptic choice." According to a new study, eggs use various chemical signals to attract different men's sperm — and not necessarily the sperm of their chosen partners.

Marrying biology and engineering permits the design or redesign of biological molecules and complex systems that do not exist naturally in the world – the applications of which are unprecedented.

A massive new study has found evidence that blood iron levels could play a role in influencing how long you live.

All your life, you thought you just had an odd-looking little mole. From 2011, what it’s like when a doctor says that you belong in the ranks of Marky Mark, centuries of witches, and Krusty the Clown.

Tigar, a newly discovered protein in the world of Parkinson's, could be the key to stopping the degenerative disease according to research from the University of Sheffield.

Here is the thing about ACL tears: They're not just another injury. They are the Godzilla of injuries. They are painful beyond tolerance, they take eons to rehab, and they always leave a lingering doubt in the athlete's mind that he will ever be whole again. An ACL tear tests one's mettle. An ACL tear goes to the very heart of resilience and mental toughness. An ACL tear is the standard against which the athlete himself measures his determination. An ACL tear is the absolute limit.

People have been fixated on Napoleon's penis since Napoleon's doctor allegedly cut it off during his autopsy in 1821 and gave it to a priest in Corsica. The penis, which was not properly preserved, has been compared over the years to a piece of leather, a shriveled eel and to beef jerky.

Drugs that boost brainpower are increasingly being taken by healthy people to study or work harder. Could this become the norm, or a condition of employment? Would you let your child get on a bus driven by someone on mind-altering drugs? What about having an operation conducted by a surgeon taking stimulant pills? Unappealing at first glance; however would your opinion change if you knew those drugs made the driver less likely to crash, and the surgeon better able to keep a steady hand?

A difference at the smallest level of DNA - one amino acid on one gene - can determine whether you find a given smell pleasant. A different amino acid on the same gene in your friend's body could mean he finds the same odor offensive, according to researchers at Duke University.

Intellectually, a man knows that the size of his penis shouldn’t be specifically relevant in a relationship, to him or to a woman. His common sense tells him that it will certainly not be the major or controlling factor in a woman’s response to him. And yet … he can’t help believing that it is.

Yippee! Let's poison ourselves with beverages that will make us violently ill! It was your battle cry last night, and today you're paying the price. But what is that hangover you're experiencing, exactly?

Jet lag, shift work, and even late nights staring at your tablet or smartphone may be making you sick. That's because the body's internal clock is set for two 12-hour periods of light and darkness, and when this rhythm is thrown off, so is the immune system. One reason may be that the genes that set the body clock are intimately connected to certain immune cells, according to a new study.

The curious case of the now virally famous man with no ass crack suggests that the battle between Darwinists and Creationists may come down to … the cloaca.

In this short video, the folks at Head Squeeze explain why we get car sick (and sea sick, and motion sickness in general). While the explanation is interesting, the most useful bit may be the tip about moving farther forward in the vehicle—I have several relatives who can survive a front-seat ride but simply won't make it in the back.

"Temperature training" may be what is missing from your weight-loss plan. New evidence suggests that regular exposure to mildly cold air may help people lose weight by increasing the amount of energy their bodies have to expend to keep their core temperature up, researchers say.

In a breakthrough that could one day revolutionize transplant medicine, researchers have successfully grown human lungs in a lab for the first time, Medical News Today reported.