TED-Ed
TED-ED: The science of skin - Emma Bryce
Between you and the rest of the world lies an interface that makes up 16% of your physical weight. This is your skin, the largest organ in your body: laid out flat, it would cover close to 1.7 square meters of ground. But besides keeping...
TED-Ed
TED-Ed: The science of milk - Jonathan J. O'Sullivan
The milk industry produces in excess of 840 million tons of products each year. Why do humans drink so much milk? And given that all mammals lactate, why do we favor certain types of milk over others? Jonathan J. O'Sullivan describes how...
Science360
Novel approach advances home and health sensors - Science Nation
Computer science team successfully taps electronic "noise" to reveal details about water and energy use Description: You may get a breakdown of your home energy use in your monthly bill, but what if you could see how much energy your...
Institute of Human Anatomy
The Science Behind Creatine: Benefits, Safety, and Athletic Performance
This video explains what creatine is, how it works in the body, and whether it is safe and effective for increasing athletic performance. It covers topics such as how creatine is synthesized and stored in the body, how it helps provide...
TED-Ed
TED-Ed: How does caffeine keep us awake? - Hanan Qasim
Over 100,000 metric tons of caffeine are consumed around the world every year. That's equivalent to the weight of 14 Eiffel Towers! Caffeine helps us feel alert, focused, and energetic, even if we haven't had enough sleep - but it can...
TED-Ed
TED-ED: Do we really need pesticides? - Fernan Perez-Galvez
Annually, we shower over 5 billion pounds of pesticides across the Earth to control insects, unwanted weeds, funguses, rodents, and bacteria that may threaten our food supply. But is it worth it, knowing what we do about the associated...
TED-Ed
TED-Ed: How does anesthesia work? - Steven Zheng
When under anesthesia, you can't move, form memories, or -- hopefully -- feel pain. And while it might just seem like you are asleep for that time, you actually aren't. What's going on? Steven Zheng explains what we know about the...
TED-Ed
TED-Ed: What causes kidney stones? - Arash Shadman
The biggest kidney stone on record weighed more than a kilogram and was 17 centimeters in diameter. The patient didn't actually swallow a stone the size of a coconut; kidney stones form inside the body. So how do they grow in the first...
TED-Ed
TED-Ed: How do viruses jump from animals to humans? - Ben Longdon
Discover the science of how viruses can jump from one species to another and the deadly epidemics that can result from these pathogens. -- At a Maryland country fair in 2017, farmers reported feverish hogs with inflamed eyes and running...
TED-Ed
TED-Ed: What is dust made of? - Michael Marder
Less than a tenth the size of an ant, a dust mite's whole world is contained in the dusty film under a bed or in a forgotten corner. This realm is right under our noses, but from our perspective, the tiny specks of brilliant color blend...
TED-Ed
TED-Ed: Questions no one knows the answers to - Chris Anderson
In the first of a new TED-Ed series designed to catalyze curiosity, TED Curator Chris Anderson shares his boyhood obsession with quirky questions that seem to have no answers.
TED-Ed
TED-Ed: Why is it so hard to cure cancer? - Kyuson Yun
We've harnessed electricity, sequenced the human genome, and eradicated smallpox. But after billions of dollars in research, we haven't found a solution for a disease that affects more than 14 million people and their families at any...
TED-Ed
TED-ED: What happens during a stroke? - Vaibhav Goswami
Every two seconds, someone in the world has a stroke. One out of every six people will have a stroke at some point in their lives. Strokes deprive brain cells of oxygen and are one of the most common causes of death, and a leading cause...
TED-Ed
TED-Ed: Which sunscreen should you choose? - Mary Poffenroth
Sunscreen comes in many forms, each with its own impacts on your body and the environment. With so many options, how do you choose which sunscreen is best for you? To answer that question, Mary Poffenroth explains how sunscreens work and...
Weird History
The History of Olestra Fat Substitute
During the low-fat fad of the 1990s, Procter & Gamble believed it had attained the holy grail of low-fat yet flavorful snacks. P&G's fat substitute olestra was rebranded "Olean", and licensed to food manufacturers for use in chips and...
Curated Video
Properties and Benefits of Carbonated Water
Learn how carbonated water is made and about its effects on health. Various additives and flavors are commonly found in carbonated water. Some of these properties have potential benefits such as improved digestion and increased water...
TED Talks
TED: Why science needs to get behind natural medicine | Jeff Chen
Pharmaceutical companies often only patent drugs they can monetize, creating synthetic versions of remedies already available in nature. In this quick talk, physician and entrepreneur Jeff Chen offers a path to affordable, effective...
TED-Ed
TED-Ed: What is a poop transplant, and how does it work? | Kathryn M. Stephenson and David L. Suskind
1,700 years ago, Chinese alchemist Ge Hong was renowned for his soup that could cure diarrhea-stricken patients. It had a surprising secret ingredient: feces. While it might seem unwise to consume feces, exciting new research suggests...
TED Talks
Stephen Palumbi: Hidden toxins in the fish we eat
What's link between the ocean's health and our health? Marine biologist Stephen Palumbi shows how toxins at the bottom of the ocean food chain find their way into our bodies -- and tells a shocking story of toxic contamination in the...
SciShow
The WHO Says Diet Soda Causes Cancer. Does It?
The World Health organization recently added aspartame, an artificial sweetener used in diet soda and tea, to its list of possibly carcinogenic substances. But will diet soda really give you cancer? We look at the science behind the...
TED-Ed
TED-ED: What causes body odor? - Mel Rosenberg
Most of us don't need more than one whiff to identify that generally unpleasant, characteristic smell we call body odor. But it's a surprisingly complex phenomenon, influenced by our genetic makeup, age, diet, and hygiene. So what is...
TED-Ed
TED-Ed: Why doesn't anything stick to Teflon? - Ashwini Bharathula
Teflon was in the spacesuits the Apollo crew wore for the moon landing, in pipes and valves used in the Manhattan project, and it may be in your kitchen, as the nonstick coating on frying pans and cookie sheets. So what is this slippery...
TED-Ed
TED-Ed: What is fat? - George Zaidan
As the narrative goes, fat is bad. Well, it's actually more nuanced than that. The type of fat you eat is more impactful on your health than the quantity. George Zaidan examines triglycerides, the varied molecules that make up fat, and...
TED-Ed
TED-Ed: What causes insomnia? - Dan Kwartler
What keeps you up at night? Pondering deep questions? Excitement about a big trip? Stress about unfinished work? What if the very thing keeping you awake was stress about losing sleep? This seemingly unsolvable loop is at the heart of...