Are You a Nighttime Tooth Grinder? Here's How To Tell—And What to Do About It

Teeth grinding is a problem that affects nearly one in ten individuals, yet many of us don’t even realize we’re doing it. And that’s a problem given just how harmful it can be to our health. Here’s how to find out if you grind your teeth when you sleep—and why it’s something you shouldn’t ignore. »10/02/15 2:24pm10/02/15 2:24pm

Why Brave New World is No Longer the Terrifying Dystopia it Used to Be

Brave New World used to be one of the most terrifying stories about a false utopia. It gave us the concept of “test tube babies,” and its name became synonymous with technological progress run wild. But many of the things Aldous Huxley predicted are coming true, and it turns out they’re not so scary. »9/21/15 2:57pm9/21/15 2:57pm

Why Are Dogs So Insanely Happy to See Us When We Get Home?

Unlike a certain companion animal that will go unnamed, dogs lose their minds when reunited with their owners. But it’s not immediately obvious why our canine companions should grant us such an over-the-top greeting—especially considering the power imbalance that exists between the two species. We spoke to the experts… »7/31/15 3:08pm7/31/15 3:08pm

When We Discovered Pluto, It Changed How We Saw The Solar System

On the 23rd and 24th of January, 1930, a young astronomer working in Flagstaff, Arizona, scanned a small patch of the night sky. He was taking pictures of star positions, looking for anomalies that would signal movement somewhere at the edge of the solar system. He took the pictures then set them aside, not realizing… »7/12/15 4:25pm7/12/15 4:25pm

You Can Thank Genetic Engineering For Your Delicious Cheese

It used to be that making cheese meant killing cows. Young cows, specifically—a few days old, at most. The stomach of an unweaned calf produces enzymes that turn liquid milk into good, hard, flavorful cheeses like Parmesan and Cheddar. These enzymes, called rennet, are secreted by mucous membranes that line the calf’s… »6/15/15 3:17pm6/15/15 3:17pm

What Would Happen If All Our Satellites Were Suddenly Destroyed?

Since their inception 60 years ago, satellites have gone on to become an indispensable component of our modern high-tech civilization. But because they’re reliable and practically invisible, we take their existence for granted. Here’s what would happen if all our satellites suddenly just disappeared. »6/04/15 2:02pm6/04/15 2:02pm

Has Humanity's Explosion Become a Population Bomb?

The world's population has exploded over the past century, growing from less than 2 billion to 7 billion people. And it's not stopping. The U.N.'s current projection is that humanity will number 9.3 billion individuals in 2050, and then hit 10.1 billion by 2100. Meanwhile, our energy resources are dwindling and… »6/02/15 12:45am6/02/15 12:45am

Popular Exercises To Avoid At All Costs—Unless You Do Them Right

Many popular exercises are performed incorrectly, often by people who probably shouldn’t be attempting them in the first place. This can result in injuries and futility at the gym. We talked to the experts to find out which exercises are the most problematic, and how to do them correctly. »5/12/15 3:03pm5/12/15 3:03pm

Your Doctor Probably Has A DNR. Here's Why You Should Consider One, Too.

Most patients receiving end-of-life care want to avoid aggressive attempts to prolong their life, but medical culture and practices often contradict these wishes. Part of the problem is due to confusion surrounding do-not-resuscitate orders. Here’s what patients really need to know about the “no code.”
»5/06/15 5:40pm5/06/15 5:40pm

A Glimpse Inside The Secretive World Of Human Cannonballs

Once she has lowered herself into the mouth of the cannon and slid down to the base of the barrel, Gemma “The Jet” Kirby performs a series of breath-synchronized movements that seem more suited to yoga or lamaze than to one of the deadliest stunts in circus history. This sequence is the culmination of hours of… »4/30/15 2:45pm4/30/15 2:45pm