Reactions Science Videos

Happy New Years folks! Just in case you celebrate a little too hard, we're offering you some chemistry tips to stave that hangover and to help you get a better start on your resolutions.

For folks with seasonal affective disorder, the changing seasons can make them sadder than most, to the point of depression. Why does this happen and what are some possible treatments?

Star Wars VII: The Force Awakens with its intense plot will have you on the edge of your seat. But is it possible to create a real-life lightsaber or build a Death Star laser?

Dull knives and not having a knife sharpener is a drag. This chemistry life hack is going to have you going straight MacGyver up on that lame point of yours.

This life hack is for those you out there who yearn to know about whether or not your oven is actually reaching the same temperature as the dial is set to.

Wine drinkers rejoice, if you've got a bottle of wine that's pumping out bad smells, we've got a life hack to help you save your wine and your relaxing evening.

You have probably had the burning sensation of eating a jalapeno pepper. But what causes this painful fire in your mouth and why does drinking milk relieve the pain?

In celebrating Thanksgiving, we've put together a video on a new horizon of creating fake meats that taste and feel just like the real thing and way better for the environment.

You’ve seen Vitamin and supplements in commercials and at your pharmacy. Pills that claim to cure your cold or help you lose weight. But do they work?

In the Fallout 4 video game, the story features people who survived a nuclear war by hiding in shelters. Here, we look at how to survival a world full radiation.

Why does some cheeses melt perfectly while others crumble into a nasty mess? We’ll answer that question with some scientific advice on how to create the perfect grilled cheese experience.

We love horror films. In honor of those chased by monsters and zombies, we take a closer look at what happens chemically in your brain and body right before you die.

Nanomachines are many orders of magnitude smaller than a human cell, but they have huge promise. In the future, they could deliver drugs anywhere in the body, clean up oil spills and might even be used as artificial muscle cells.

You might not believe it, but there was a time when urine helped shape the modern world. Reactions looks at the reasons why pee was once the “number one” material in chemistry.

How can you make your perfect cookie? Using science, of course. We partnered with Science News magazine’s Bethany Brookshire to take a bite out of baking with the scientific method.

When we stink, we have deodorants and antiperspirants to help us, but how do these products actually work? This week, we're talking body odors, and how we drape a tarp over them with chemistry.

In support of National Recovery Month, which calls attention to substance abuse issues and treatment services, Reactions takes a look at the chemistry behind addiction.

To kick off this football season, Reactions looks at everything that goes into a football helmet and how chemistry helps keep players safe.

Breakfast has been the topic of much debate. For years, we were told to eat a complete breakfast. But what does that even mean?

These sprays can work wonders, but how do they actually work? Do they really remove the smell or just mask it?

Some of you folks out there know first hand that a cup of coffee almost immediately means a trip to the bathroom. But what's inside a cup of coffee that makes you have to go #2?

We explain the original way the Fantastic Four got their power – radiation – with help from SciPop Talks.

If you don’t have a tattoo, you probably at least know someone who does. In this video we explore what tattoo ink is made of, why this body art is permanent and other cool facts.

In a special bonus episode of Reactions, we celebrate the International Year of Light by exploring the science behind light, sight and invisibility.

Learn about the complex chemistry behind wine and then impress your friends at your next party thanks to Reactions.

In this week’s Reactions video, we answer all your foot-focused questions and share some tips to stop the smell.

You’re tired and you need an energy boost, but you don’t want the jitters from caffeine. We’ve got some chemistry-backed tips — one of which involves cats — to help you stay awake without coffee.

In this week’s episode of Reactions, we explain the history and science behind the Centralia mine fire.

If you’re firing up the barbecue for a summer cookout, you don’t want to miss this week’s Reactions video.

Chemistry plays a big role in your favorite tunes. Watch this week's Reactions episode, featuring a special appearance from BrainCraft's Vanessa Hill, to find out why.

PepsiCo announced recently it was removing the artificial sweetener aspartame from its Diet Pepsi products. So Reactions answers the question, “Is aspartame safe?”

This week, Reactions talks about the chemistry of HRT and what happens when the body undergoes major shifts in estrogen and testosterone — two very powerful hormones.

We investigate the chemistry behind Fido’s amazing sense of smell and why wet dogs stink.

The first food myth is one we've heard a lot: microwaving your food zaps the nutritional value. Watch to find out why that's a lot of malarkey.

Some say using frozen vegetables means losing some nutritional value. But are those some that say right?

We're rounding out this miniseries with another reason to drink (responsibly, people!).

Many agree that the Big Apple has the best bagels in the world, but many also disagree on why.

This week, Reactions explains how amphetamine (Adderall) helps you focus.

This week, Reactions has mashed up some fantastic avocado facts, as well as some cooking tips from the pros.

This week, Reactions looks at the chemistry of the Avengers, including Tony Stark’s suit, Captain America’s shield and Black Widow’s super-fast healing.

This week, we take a sobering look at the chemistry behind the modern world’s first chemical weapons.

Our latest Chemistry Life Hacks video explains how to make your own glass cleaner, keep red wine from staining your carpet and why spit can also be a great cleaning product.

Could you make your own Game of Thrones Valyrian steel sword using real-life chemistry?

Bestselling author Sam Kean takes us through the nearly 2,400-year quest to see the atom in a new episode of our "Legends of Chemistry" series.

The constant stress of our everyday lives means we’re getting overexposed to cortisol. Raychelle Burks, Ph.D. explains why too much is bad for you.

Like it or not, Reactions is back with round two of chemistry jokes.

What is high fructose corn syrup and how is it different from regular old sugar?

This week, in honor of St. Patrick’s Day, Reactions takes on craft beer chemistry.

Jennifer Novotney, winner of the 2014 Chemistry Champions competition, breaks down what it is about poison ivy that makes us so itchy.

People have turned to “vaping” with electronic cigarettes. But is that vapor you’re inhaling any safer than taking a drag on a cigarette?

Blue jeans are among the most popular clothing items in the entire world. But how did Levi Strauss get his “workwear” so blue?

Carbon monoxide is no joke, especially in the winter. Raychelle Burks, Ph.D., explains why carbon monoxide is so dangerous.

If there’s one man in Hollywood that knows the value of chemistry, it’s Michael Bay.

Did you know that one minor chemical change would make that rose not smell as sweet? Chemist Raychelle Burks, Ph.D., explains why.

Is there such a thing as love at first smell? Reactions has the answers in this week’s episode.

Mary Sherman Morgan, Alice Ball and Rachel Lloyd all had amazing accomplishments in chemistry, but their work was nearly lost to history.

While you wait out the winter months, we’ve got advice on keeping your windshield fog-free, getting unstuck from the snow and even how to make your own hand warmer.

Many reach for the moisturizer to keep their skin soft, but how do these products actually work?

Chemist George de Hevesy’s work transformed medicine. He also foiled the Nazis along the way.

This week, we break down the chemistry that keeps the roads safe when bad weather hits.