The average human is capable of hearing frequencies between 20Hz to 20,000Hz. The higher you hear, the better your hearing ability. And the older we get, the harder it is to hear high-frequency sounds. Take this simple, accurate quiz to see how you stack up.

Grab your phone and download the Komando app. It's a super easy (and free!) way to keep up with the latest news, hear my podcasts and more.

It's wintertime, which, for many, means ice and snow. For those who need to get rid of that icy mess on their windshields, here are four easy steps to defrost (and defog) your windows twice as quickly — and the science behind why it works.

Manhattan is one of the most tech-savvy locations in the world, but a wire encircling the borough has nothing to do with telephones or the internet. Keep watching to learn what this wire powers — it may surprise you.

A bicycle is seemingly one of the most basic contraptions. You pedal to move and turn the handlebars in the direction you want to travel. Well, it turns out riding a bike takes some natural intuition that you would never think about. This bike shows how our brains automatically know something about bike riding that you wouldn't have imagined.

I do my best to stay healthy. I work out every day, eat well … but I have a few secrets, too. For a healthy heart and more energy, I love SuperBeets.

SuperBeets Heart Chews give you all the fabulous healthy heart benefits of eating beets, but without the hassle of juicing. They combine non-GMO beets with grapeseed extract, which is clinically shown to be twice as effective at supporting normal blood pressure as a healthy lifestyle alone. And better blood pressure means more energy — without the jittery caffeine or stimulants.

Do what I did and support your heart health with delicious SuperBeets chews!