“We’ve told you before that there really isn’t any evidence that animals consume mind-altering substances because they feel good to them. This makes it appear that the fondness for psychoactive drugs is, pretty…human. What is it about our species that makes us so attracted to these substances?”
Hosted by: Hank Green
Ever wonder how milk becomes cheese? We asked about the science and the microbes that go into this tasty food. This week on Reactions, we visit St. James Cheese Company in New Orleans to learn all about the chemistry of your favorite dairy product. Continue reading
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. Continue reading
It’s a common misconception that stomach ulcers are caused by emotional upset, psychological distress, or spicy food. Continue reading
Over-the-counter pregnancy tests give potentially life-changing results with a pretty high rate of accuracy. But how do they work? Tien Nguyen explains how each test performs a scientifically rigorous, multi-stage experiment that goes from start to finish in the time that it’ll take you to watch this video.
Lesson by Tien Nguyen, animation by Andrew Foerster.