TED-Ed
TED-ED: Who's at risk for colon cancer? - Amit H. Sachdev and Frank G. Gress
Colon cancer is one of the leading causes of cancer and cancer death in the world. It is also one of the most preventable types of cancer, as it often takes about ten years for a small polyp to grow and develop into a cancerous one. So...
SciShow
Can You Really Be Scared to Death?
Can you literally "die of fright?" Turns out, you can! In this episode of SciShow Hank explores the mechanisms in your body that activate when you get scared, and how they can sometimes get out of hand.
SciShow
How Being Obsessed with Health Can Make You Unhealthy
Dieting and exercise can be good for you, but just because something’s healthy, that doesn't mean more is even healthier.
SciShow
What Happened to Mad Cow Disease?
If you were around in the '90s, you might remember the scare over mad cow disease, but it seems to have quieted down in the intervening years. What happened?
Be Smart
The Deadliest Flu Season in History?
The flu might feel like some minor illness that you don't need to worry about much, but tens of thousands of people still die from it every year. And back in 1918, Flu killed up to 5% of the world's population. Could a flu that bad...
SciShow
6 Weird Units of Measurement We're Still Using for Some Reason
You might be benefiting from the weird units you've never heard every time you put on your shoes or read about dark matter.
SciShow
Your Pee is Pollution
Ever wonder what happens after you flush? You should, because your pee is causing problems! Hank talks about how, and why, human waste is having weird effects on the natural world. We're talking homicidal fish and hermaphroditic frogs...
SciShow
Can Hot Tubs Make You Sick?
Soaking in a hot tub is a great way to relax your tired body, but it also comes with some microbial risks.
SciShow
Bigger Beaks Through Climate Change | SciShow News
Today we're talking about birds — from how they are evolving in response to climate change and how one species is surprisingly healthy, genetically, despite being critically endangered.
TED Talks
TED: The surprising ingredient that makes businesses work better | Marco Alvera
What is it about unfairness? Whether it's not being invited to a friend's wedding or getting penalized for bad luck or an honest mistake, unfairness often makes us so upset that we can't think straight. And it's not just a personal issue...
TED Talks
Anne Milgram: Why smart statistics are the key to fighting crime
When she became the attorney general of New Jersey in 2007, Anne Milgram quickly discovered a few startling facts: not only did her team not really know who they were putting in jail, but they had no way of understanding if their...
SciShow
HIV vs. AIDS & Ash the Chinchilla: SciShow Talk Show #19
Clinical Sexologist and Sexplanations Host Lindsey Doe teaches Hank the difference between HIV and AIDS. Then Chinchilla Ash teaches Hank about softness. Chapters View all LINDSEY DOE 0:19 IMMUNODEFICIENCY 2:38 STAGE 1: ACUTE INFECTION...
SciShow
Why You’re More Afraid of Sharks Than Cows
Tons of people are afraid of sharks, but the reasons have a lot more to do with how our brains deal with risk than anything to do with these super cool sea critters. Heads up: This video contains footage of sharks.
SciShow
What Happens If You Leave Your Contacts in for Too Long?
If you're wearing contacts, you might want to take a look at this.
SciShow
The Chemistry of Addiction
Hank describes how our brains respond biochemically to various addictive substances and behaviors and where those responses have come from, evolutionarily speaking.
TED-Ed
TED-Ed: The race to sequence the human genome - Tien Nguyen
In 1990, The Human Genome Project proposed to sequence the entire human genome over 15 years with $3 billion of public funds. Then, seven years before its scheduled completion, a private company called Celera announced that they could...
TED-Ed
TED-Ed: Will there be another pandemic in your lifetime? | TED-Ed
We tend to think of pandemics as unlikely events, but disease outbreaks are surprisingly common. Over the past 400 years, the longest stretch of time without a documented outbreak was just four years. So, what's the probability of...
Bozeman Science
Loss of Biodiversity
In this video Paul Andersen explains how biodiversity measures the variety of genes, species, and ecosystems on the planet. Biodiversity provides resources and ecosystem services for humans on the planet. He also explains how...
SciShow
Alcoholism: How much is too much?
An excessive amount of alcohol can cause lots of problems, but lots of people drink fairly regularly without any of these problems. So, how do you know when you drink too much?
TED-Ed
TED-ED: What happens during a heart attack? - Krishna Sudhir
Approximately seven million people around the world die from heart attacks every year. And cardiovascular disease, which causes heart attacks and other problems like strokes, is the world's leading killer. So what causes a heart attack?...
Crash Course Kids
Severe Weather
So, what's the difference between 'weather' and 'severe weather'? Is it just how hard the wind is blowing? Is it just thunder and lighting? Well, it can be some or all of those things. In this episode of Crash Course Kids, Sabrina talks...
MinuteEarth
Which Came First - The Rain or the Rainforest?
Which Came First - The Rain or the Rainforest
TED-Ed
TED-Ed: How does alcohol make you drunk?
Ethanol: this molecule, made of little more than a few carbon atoms, is responsible for drunkenness. Often simply referred to as alcohol, ethanol is the active ingredient in alcoholic beverages. So how exactly does it cause drunkenness,...
SciShow
The Dark History of Matches
When we began mass-producing matches in the 1800s, workers in the factories started dying mysteriously. The history of our sparking little flame-sticks is darker than you think.