Scent of a Mosquito

Bzzz bzzz, smack! You—literally—smell good enough to eat! This is Sandra Tsing Loh with the Loh Down on Science. Those pesky mosquitoes! They do more than just bug us. They spread malaria! Yikes! Even more horrifying? Once you’re infected by a malarial mosquito, you attract more of them! Never fear,

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Hair Today, Gone Tomorrow

Got thinning hair? Now we know why! This is Sandra Tsing Loh with the Loh Down on Science. All types of mammals experience hair thinning as they age. Ugh. In both sexes, it’s thought to be caused by shrinking hair follicles. But stem-cell biologists in Japan weren’t content with shrinkage

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Just Add Mushrooms

Look out! Pothole! This is Sandra Tsing Loh with the Loh Down on Science. Potholes and cracks. Every commuter’s nightmare. If only the problem could fix itself! Enter Congrui Jin and her team at Binghamton and Rutgers universities. They filled in the cracks by hiring some self-motivated construction workers. Who?

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The Nasal Cycle

Did you know your nose has its own cycle? This is Sandra Tsing Loh with the Loh Down on Science. A whopping eighty percent of us have a nasal cycle. Meaning that congestion alternates from one nostril to the other throughout the day. We just don’t usually notice because our

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Scaling Wall Scaling

Sorry Spider-man, but you’re no gecko! This is Sandra Tsing Loh with the Loh Down on Science. Zoologists at the University of Cambridge wondered: Why can some animals with sticky feet scale walls while others can’t? They studied 225 climbing animals of various sizes. From mites and spiders to tree

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Cuddle Buddies

Are hugs the new chicken soup? This is Sandra Tsing Loh with the Loh Down on Science. Think of your gut as a soup of friendly bacteria. Everybody’s recipe is custom made to work with our bodies properly. These good bacteria help digest food and fight disease. Scientists know that

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Staff Infection

Mountain men, rejoice! This is Sandra Tsing Loh with the Loh Down on Science, and some surprising news about beards. British scientists wanted to know if beards were spreading bacteria in hospitals. Why? Because hospital-acquired infections cause thousands of preventable deaths each year. So they swabbed the faces of around

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Skin Fix

Can you put a bandage on your lungs? This is Sandra Tsing Loh with the Loh Down on Science. Most of the time during surgery, our wounds are closed with stitches. In a pinch, you can mend a cut with super glue. But glue can also bug your skin and

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DNA Autocorrect

Autocorrect is great for our phones. But what about our DNA? This is Sandra Tsing Loh with the Loh Down on Science. DNA is made of building blocks called bases. These bases spell out the blueprints for our cells! Sometimes, mistakes are made, and the wrong base gets swapped in.

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Travelin’ Cows

Where did the mysterious, pre-Roman Etruscan people come from? Ask the cows! This is Sandra Tsing Loh with the Loh Down on Science. Thanks to a wealth of Etruscan artifacts, archaeologists know this: The civilization flourished in the first millennium BC in what is now Tuscany. But nobody ever figured

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