Kelly asks: Is it true that men snore more than women? If it is true, why and if not where did this stereotype come from? Thanks! When humans sleep, the muscles around our throats relax and cause the airways to narrow. Snoring occurs when certain soft tissues—such as the soft palate (or roof of the mouth), the uvula (the dangling […]
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Mark R. asks: Why does wet hay that is bailed catch on fire? Plant reactions and bacterial growth combine to raise temperatures in even the driest hay bales, although most never catch fire on their own. However, when hay is packed tightly, and enough moisture gets in, the conditions may be right for spontaneous hay combustion. How does this work? […]
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Jane R. asks: In photos of starving children and babies, their stomachs often seem to be swelled up. What causes this? Of all the tragic, indelible images that come from places of famine, none is more troubling than the iconic photograph of a painfully thin child with an enormous, distended belly. The result of several factors relating to malnutrition, that […]
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Mark K. asks: Cans of Diet Coke float. Cans of regular Coke don’t. The cans are the same size and they contain the same amount of liquid according to the label. What gives? Fun fact: If you put a can of Coca-Cola into a pool of water, it would sink. However, if you put a can of Diet Coke into […]
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John A. asks: What causes warts and how do you get rid of them safely? A viral infection caused by one of several ubiquitous strains (there are more than 100 known, with the vast majority of humans acquiring at least one strain at some point in our lives) of the pesky human papillomavirus (HPV), skin warts happen as the virus […]
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Dustin A. asks: How does the brain create memories? A complex network that stretches from your basest sensory organs to the most sophisticated portions of your brain, memory aids in everything from simple movements to complicated tasks, and ultimately makes us who we are. Comprised of three distinct neurological processes, memories can be sensory, short-term or long-term. Sensory Memory Acting […]
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Deep in the heart of Indonesia’s Sumatra rainforest, where tigers hunt, rhinos stampede, orangutans play, and cuckoos sing, blooms a flower that does its very best to attract more attention than any of the animals. The rare Amorphophallus Titanum, or Titan Arum, or known by its more descriptive nickname the “Corpse Flower,” is described as the world’s largest flower. But […]
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If we were to tell you that there is a parasite out there that can infect virtually any warm-blooded creature on Earth; is found just about everywhere; approximately 33% of humans are infected; and is also mysteriously linked to people committing suicide and brain cancer, then we told you that it was most commonly found in cats, you’d say we […]
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For over 150,000 years, our ancient cousins, the Neanderthals (Homo neanderthalensis), thrived throughout Europe until, in the blink of an eye (geologically speaking), they disappeared off the face of the Earth. Several theories have been proposed to explain their extinction, although a consensus is growing that the primary factor was competition with us (Homo sapiens). Despite their annihilation, however, their […]
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David G. asks: Why do people yawn? Do other animals do this too? Babies, dogs, cats, birds, mice, rats and even snakes yawn, and some of us were even doing it in the womb. Although for thousands of years the reason has remained elusive, recent scholarship may have uncovered the truth as to why we yawn. Physiology of Yawning When […]
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A neurobiological disorder that causes its sufferers to make uncontrolled sounds and movements, the symptoms of Tourette syndrome (not Tourette’s) can be so mild that many people who have the condition are not even aware of it. What is Tourette? Like many other psychological conditions, the syndrome is diagnosed after several symptoms have been observed, and they include: At least […]
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Sam asks: What makes snot yellow and green? Snot is an essential part of a healthy body (no, really), and its color and consistency can give you a lot of information about what’s going on in yours at any given time. What is mucus? Produced in the lining of the sinuses, nose, throat, mouth, lungs and even digestive tract, mucus […]
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That the ratio of the circumference of a circle to its diameter is constant has been known to humanity since ancient times; yet, even today, despite 2000 years of thought, theories, calculations and proofs, π’s precise value remains elusive. Ancient Civilizations Babylonian By the 17th century B.C., the Babylonians had a relatively advanced knowledge of mathematics, that they memorialized into […]
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Tapping into people’s insatiable appetite for new ways to screw around and waste time, recently some Ivy League researchers made a key element of their work into an online game. In order to solve the riddle of how the eye perceives motion and direction, the neuroscientists first needed to create a map of the retina’s neural pathways – out of […]
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Drew asks: Why are some ice cubes clear and others cloudy? Unless you happen to have a specialized ice machine in your home, it is practically guaranteed that the ice your freezer makes is of the cloudy variety. A popular and well known trick to making clear(er) ice is to either boil the water first or use distilled water. However, […]
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Hannah asks: Why do we kiss? Is this something built in or do we just do it because we see others do it our whole lives? Making Out. Snogging. Canoodling. Kissing. An activity that is teetering on the edge of gross when viewed objectively, but one that most everyone enjoys in practice. But why do we kiss? What compels us […]
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Jeremy R. asks: Why do people look more attractive when you’re drunk? Anyone who has been in a crowded bar around closing time would agree that the higher your alcohol consumption, the more attractive you seem to find whoever you happen to be flirting with at last call. Their smile is radiant; their eyes are sparkling- everything about them is […]
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Stefan asks: Why do we still have pubic and armpit hair when we lost most of the rest of the hair on our bodies? What purpose does it serve? It’s a biological mystery that has perplexed humanity through the ages – especially in recent times when so many of us go to such great lengths to remove it. What useful […]
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