Tez Alicia

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If You Can Smell This, You May Not Have Alzheimer's

A new diagnostic test involves a dollop of peanut butter.<p>You may not have heard of "the peanut butter test," but it could become a fantastically low-cost and non-invasive way to test for Alzheimer's. After all, what's less invasive than asking someone to smell some delicious peanut butter?<p>"The …

Brains Sweep Themselves Clean Of Toxins During Sleep

While the brain sleeps, it clears out harmful toxins, a process that may reduce the risk of Alzheimer's, researchers say.<p>During sleep, the flow of cerebrospinal fluid in the brain increases dramatically, washing away harmful waste proteins that build up between brain cells during waking hours, a …

How does deodorant work?

Get a whiff of this: James May delves into the mechanics of what body odour is and how deodorants stop us from stinking.<p>Your sweat doesn't actually smell, it's when it mixes with the bacteria on your skin that it releases an odour. Your armpits and pubic regions contain thousands of hairs which …

Painkiller in brain buffers social snubs

Research shows the brain releases natural painkillers during rejection to ease emotional pain. The discovery may help our understanding of depression …

Drinking With Your Eyes: How Wine Labels Trick Us Into Buying

We're all guilty of it. Even if we don't want to admit it, we've all been suckered into grabbing a bottle of wine off the grocery store shelf just because of what's on the label. Seriously, who can resist the "see no evil" monkeys on a bottle of Pinot Evil?<p>But the tricks that get us to buy a $9 …

Video: Thermal images of lava spewing from an erupting volcano

A thermal camera standing 250 meters away from an active volcanic vent captured this video of molten lava spewing from Italy’s Stromboli volcano.<p>A …

Lasers 3-D Print A Home For Bacteria

Microscopic bacteria cages contain communities for study.<p>Researchers at the University of Texas at Austin are building a zoo. You can't visit its inhabitants, or look inside, but it's filled with cages where entire communities can thrive. Microscopic cages. Made out of what's basically Jell-O. Oh, …

This Water Droplet Maze Is Mesmerizing

Watch it in action. Plus: learn something about the Leidenfrost effect.<p>Have you heard of the Leidenfrost effect? If not, it's about to be your favorite effect. If yes, same.<p>The basic idea is, when a liquid comes in contact with something really hot--about twice as hot as the liquid's boiling point, …

MP3 Player Lives In Your Ear, Controlled With Your Teeth

It stores up to 24 songs with four hours of battery life for completely hands-free jamming.<p>Say goodbye to getting wrapped up in miles of cord connecting your MP3 player to your headphones as you listen to music. These little earphones, named Split, make up a completely wire-free music player in …