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Fictional characters, and even real-life folks, often talk about animals and people—particularly snarling dogs and knife-wielding lunatics—being able to “smell fear” on people. No one ever seems to be able to describe just what fear smells like, though.
Tis the season to be getting the cold and flu. But is it possible for the bacteria and viruses that infect us so easily to get sick themselves?In 1917, a microbiologist working at the Pasteur Institute in Paris discovered what he described as an invisible
Buckingham Palace has confirmed what the British tabloids have suspected for a while: The Duchess of Cambridge is expecting. Unfortunately, Kate has also been admitted to the hospital due to hyperemesis gravidarum, or acute morning sickness—so severe that
For a long time, scientists thought that pruning of the skin after spending time in the water was simply a matter of fingers being a little spongey. The outermost layer (the stratum corneum) of the outermost layer (the epidermis) of our skin is mostly mad
A mental_floss staffer who shall remain nameless asks, “Why is cranberry juice good for treating UTIs? I will not tell you why this question had been on my mind.”Bacterial infections in the urinary tract and its organs are pretty common, especially in adu
Try and say “she sells sea shells by the sea shore” three times very fast. The first time might go alright, but on the second or third go-round, chances are the words start to degrade as you’re saying them, falling apart in your mouth like a crumbling Jen
If you’re like most people, you simply can’t pass up the opportunity to partake in a piece of chocolate (or five).
When I was a kid, my parents often tried to sell me on the idea that carrots were good for my eyes—and if I wanted to avoid vision correction in the future, I would eat them now. But after I was fitted for my first pair of glasses in fourth grade, they dr
Though fingerprints are handy for identifying perps, biologically, scientists still aren't quite sure what our fingerprints are for. But as they test different hypotheses, they're getting closer to the answer—and learning some pretty cool stuff in the pro
You lie down to get some sleep after a long night of drinking, and the room seems to be spinning uncontrollably. Why does this happen?
A friend of mine recently got pinkeye. Whenever she put in her eye drops, she noticed a distinct and very unpleasant taste on the back of her tongue.
Reader Jen wrote in to ask, “Why do old injuries ache during crummy ache during crummy weather?" The idea that certain aches and pains correspond with, and can even predict, the weather is widespread, and has been around since at least the days of ancient
The heart is the most important muscle in the body, so it seems like something of a marketing ploy by the folks at Bayer to suggest that something so simple as a humble aspirin tablet can be of any use when this life-sustaining organ goes into epic fail m
Eye floaters—or 'muscae volitantes,' Latin for 'hovering flies'—are those tiny, oddly shaped objects that sometimes appear in your vision, most often when you’re looking at the sky on a sunny day.
More than any other bodily injury, getting hit in the testicles is probably what every man dreads most. Of all the soft, fleshy spots on the human body, none register the same kind of incapacitating, end-of-the-world pain as the family jewels.
Let’s picture a typical moment in my day: I’m minding my own business, with my iPhone in my back pocket. Suddenly, my left cheek is shaking as the phone vibrates and does the bzzt, bzzt, bzzt-ing dance of its people on my backside. I check the phone, and
The sugars in beans are far too big to slip though the intestinal wall on their own, and our guts’ enzymatic tool kit doesn’t have the right stuff to break the big things apart into more manageable pieces.
Sledding image via Shutterstock“Put a jacket on if you’re going out there, or you’ll catch a cold.”It’s a common refrain of grandmothers all over the world. Are they right, though? Do low temperatures have anything to do with catching the common cold? Mos
Smelling image via ShutterstockI’m perfectly suited to answer the Big Question that reader Katie posed the other day, because I have anosmia, which means I can’t smell. At all. Every diaper my two-year-old has ever filled has been totally odorless to me.
Paper cut image via ShutterstockThere are a couple things at play here, some involving the paper, some involving your skin. For one thing, what part of your body comes in contact with paper the most?
The birds themselves? Not a whole lot. Chickens don’t even get infected by the virus — varicella zoster, a member of the herpes family — that causes the rash.
Some animals have it made. Their whole day revolves around eating and having sex (and, to be fair, trying not to get eaten themselves). And when winter arrives, they get to curl up somewhere and wait things out until the weather is nice again. Can humans
Adam's apple photo via ShutterstockTouch your fingers to the front of your throat and start humming. Feel around until you can feel vibration directly under your fingers. That’s your larynx, or voice box. It houses your vocal cords and is involved in brea
Reader Bill wrote in to ask, “Why does the sound of running water make me want to pee—and sometimes