The new breed of high-tech self-monitors (measuring heartrate, sleep, steps per day) might seem targeted at competitive athletes. But Talithia Williams, a statistician, makes a compelling case that all of us should be measuring and...

Imagine being unable to say, "I am hungry," "I am in pain," "thank you," or "I love you,” -- losing your ability to communicate, being trapped inside your body, surrounded by people yet utterly alone. For 13 long years, that was Martin...

Carl June is the pioneer behind CAR T-cell therapy: a groundbreaking cancer treatment that supercharges part of a patient's own immune system to attack and kill tumors. In a talk about a breakthrough, he shares how three decades of...

Whether we're rushing a child to the emergency room after a fall or making chicken soup for a feverish spouse, love inspires us to act when a family member gets sick. Global health activists Edith Elliott and Shahed Alam believe we can...

They explode when you touch them. Even a millionth of a gram can kill you. They can even disable you with their horrifying smell. SciShow introduces you to give of the most dangerous chemicals in the world.

Teens don't get enough sleep, and it's not because of Snapchat, social lives or hormones -- it's because of public policy, says Wendy Troxel. Drawing from her experience as a sleep researcher, clinician and mother of a teenager, Troxel...

Health headlines are published every day, sometimes making opposite claims from each other. There can be a disconnect between broad, attention-grabbing headlines and the often specific, incremental results of the medical research they...

Through treating everything from strokes to car accident traumas, neurosurgeon Jocelyne Bloch knows the brain's inability to repair itself all too well. But now, she suggests, she and her colleagues may have found the key to neural...

There are claims floating around that chocolate might actually be good for you, and SciShow is here to help separate fact from fiction.

Explore the theories of human consciousness and the science of how your brain works to create a conscious experience. -- Patient P.S. suffered a stroke that damaged the right side of her brain, leaving her unaware of everything on her...

Can we call any economy "healthy" in the face of dwindling resources and growing inequality? What if we cut off our addiction to endless growth, and used a new compass for modern prosperity? One such compass is known as "doughnut...

"What would you attempt to do if you knew you could not fail?" asks Regina Dugan, then director of DARPA, the Defense Advanced Research Projects Agency. In this breathtaking talk she describes some of the extraordinary projects -- a...

Modern medicine is in danger of losing a powerful, old-fashioned tool: human touch. Physician and writer Abraham Verghese describes our strange new world where patients are merely data points, and calls for a return to the traditional...

"Ebola threatens everything that makes us human," says Bruce Aylward of the World Health Organization. And when the Ebola epidemic exploded in 2014, it caused a worldwide panic. But humanity can beat Ebola -- and Aylward shows four...

In a war, it turns out that violence isn't the biggest killer of civilians. What is? Illness, hunger, poverty -- because war destroys the institutions that keep society running, like utilities, banks, food systems and hospitals....

Learn about the latest advances in the war against cancer from Stanford researcher Adam de la Zerda, who's working on some cutting-edge techniques of his own. using a remarkable imaging technology that illuminates cancer-seeking gold...

What is a concussion? Probably not what you think it is. In this talk from the cutting edge of research, bioengineer (and former football player) David Camarillo shows what really happens during a concussion -- and why standard sports...

Chef Barton Seaver presents a modern dilemma: Seafood is one of our healthier protein options, but overfishing is desperately harming our oceans. He suggests a simple way to keep fish on the dinner table that includes every mom's...

Two new versions of the coronavirus that causes COVID-19, the UK and South African variants, were announced in December. They've spread quickly in their countries of origin, and have begun popping up around the world. Join us to find out...

There’s a widespread belief that caffeinated drinks will make you dehydrated because the caffeine itself makes you pee. But is caffeine affecting you as much as you think?

You might have heard that one year in a dog’s life is equivalent to seven in a human’s. But it turns out that the real ratio is both higher AND lower—depending on your dog’s current age.

Cancer is a very clever, adaptable disease. To defeat it, says medical researcher and educator Paula Hammond, we need a new and powerful mode of attack. With her colleagues at MIT, Hammond engineered a nanoparticle one-hundredth the size...

Since ancient Greece, humans have controlled populations via reproduction, retaining some traits and removing others. But in the 19th century, a new scientific movement dedicated to this endeavor emerged: eugenics. Scientists believed...

As you get older, your eyes worsen and become susceptible to a disease called age-related macular degeneration -- the leading cause of blindness, with no cure in sight. Sharing the science of how your vision works, researcher Joshua...