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Online entrepreneurs may try to sell bottled human pheromones, but do these even exist? It's doubtful, according to this video. Credit: Reactions/American Chemical Society

Best-selling author Sam Kean debunks the myth of the Megalodon, the 50-foot super shark that, despite what you may have read, is long extinct. In this video, Kean unravels the myth by explaining how the element manganese holds the key.…

This video explores what ringworm is, how to avoid contracting the infection, and—if you do—how to get rid of it. Credit: Reactions/American Chemical Society

Some people enjoy eating meat, while others are vegetarian. The consumption of beef is growing, but cattle are significant contributors to greenhouse gases. What could possibly replace meat in the future? The artificial replacement could be…

Most scientists say genetically modified foods are safe to consume, but critics are fiercely opposed to GMOs. The U.S. has several federal agencies that regulate GMOs. Where do those agencies stand? In the era of CRISPR gene-editing…

More than 25 million people rely on Adderall™ and other similar drugs to help treat narcolepsy, depression and attention deficit and hyperactivity disorder (ADHD). But how does amphetamine, the active ingredient in Adderall™, work? This video…

Vegetables are full of essential vitamins and minerals, but how should you eat them to get the most nutritious value? Raw? Sauteed? Frozen? The answer is, it depends. Let this video help you navigate the ins and outs of cooking vegetables.…

Whether or not you have anxiety, you've probably heard of Xanax®. This video uncovers the chemistry behind this popular and widely prescribed drug, and answers the question of how Xanax works in the body. Credit: Reactions/American…

Your smartphone addiction isn't helping you sleep. In fact, an obscure chemical reaction may be keeping you awake. This video looks at the process that connects your late-night texts to your lack of sleep. [Credit: Reactions/American Chemical…

Chocolate-chip cookies are nearly universally adored. People enjoy them in all sorts of textures, sizes, and tastes. So, how can you make a perfect cookie? By using science, of course. This video features Science News magazine's Bethany…

Some special occasions call for flowers. After a few days, though, that beautiful bouquet may start wilting. This video has picked out the best science-backed tips to maximize the freshness of cut flowers. Credit: Reactions/American…

Do you have a special someone you want to impress? This video might help. Learn how to turn white flowers into fluorescent masterpieces. Credit: Reactions/American Chemical Society

Supermarket tomatoes account for nearly 10 percent of produce sales in the U.S. So why do most store-bought tomatoes taste terrible? Is there a way to make tomatoes taste great again? This video may have the answer. Credit:…

This video examines some novel proposals for combating climate change—including space mirrors, seeding the ocean with iron, and feeding cows seaweed. In reality, these ideas may or may not be feasible, but they are all supported by valid…

You may have heard that tossing rice at weddings will harm wild birds. This video explains why that myth is not backed up by science, and proves it with chemistry. Credit: Reactions/American Chemical Society

Neuroscientist Daphna Shohamy has found that teen brains are wired to learn. She thinks that studying teenagers can help us discover how everyone makes decisions based on experiences and memories. Shohamy’s research is showing that learning…

Songbirds have a finite time period in which they must learn to sing. Humans, too, have a limited period to learn to communicate. Neuroscientist Sara Woolley studies the brain science and learning pathways of finches—songbirds who mate for…

For all you chocolate lovers out there, this video puts dark and milk chocolate together in a faceoff. Which of these deliciously and potentially healthful treats will come out as the greatest? Watch them fight it out in four rounds.…

Peanut allergies are some of the most dangerous food allergies in the human population, due to how commonly they are found in the food industry. For the past couple of decades, peanut allergies have been on the rise in the United States. This…

This animation explains how carbohydratesare loaded into the vascular tissue called phloem for distribution throughout living plants.

This animation shows root nodule formation, a complex process in leguminous plants that supports symbiosis with nitrogen-fixing bacteria.

Most cats love catnip, but that’s not why this flowering plant produces its volatile oils. The scent of catnip is actually an application of "the enemy of my enemy is my friend" strategy. Find out exactly what that means in this video.…

The scent of freshly cut grass may actually be a chemical cry for help. This video explains how plants communicate, their chemical response to being damaged, and how insects play a role. Credit: Reactions/American Chemical Society

Food fraud often boils down to politics or semantics. An item labeled as parmesan cheese might not come from Parma, for instance. Sometimes, food producers try to feed us cheap fillers or other false ingredients. In this video, Sophia Cai…

When days get shorter, darker, and colder, some people become gloomier. For people with seasonal affective disorder, the changing seasons can make them sadder than most, to the point of depression. Why does this happen? What can someone with…