Video: How Do Hand Sanitizers Work?

The labels always read, “Kills 99.99% of Germs!” but does the science of hand sanitizers back it up? Today we’re taking a closer look at what this goo is made of, and just how effective it really is against viruses and bacteria.

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Video: TED-Ed – Why Incompetent People Think They’re Amazing

How good are you with money? What about reading people’s emotions? How healthy are you, compared to other people you know? Knowing how our skills stack up against others is useful in many ways. But psychological research suggests that we’re not very good at evaluating ourselves accurately. In fact, we frequently overestimate our own abilities. David Dunning describes the Dunning-Kruger effect.

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Video: Robots Manned Coffee Shop Opened for a Limited Time in Shinjuku, Japan

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Video: Choose to Go Meatless One Day a Week – A Timely Idea that Started 100 Years Ago

Today, eating less meat for health and environmental reasons is a trending topic. However, the origins of skipping meat one day a week goes back 100 years. Learn how Sid Lerner revitalized this idea to create Meatless Monday, a global health movement.

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Video: The Only Detox You’ll Ever Need

People talk all the time about how they need to “detox.” And there’s a line of companies a mile long waiting to sell you juices and smoothies that claim to cleanse your body of harmful toxins. But the good news is your body is working hard to clear out toxins before you spend a dime on expensive products. Toxicology expert Raychelle Burks explains how in this kale-free episode of Reactions.

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