A condition called Charles Bonnet Syndrome can cause blind patients to hallucinate scenes in vivid color. fMRI studies show that these hallucinations activate the same brain areas as sight - areas that are not activated by imagination....

It will probably be at least a year before we have a vaccine for COVID-19. But in March, the WHO launched a megatrial tolook at four treatment options for the virus.

Warning: Contains talk of cannabis.<br/>
CBD: Marijuana Without the High

Dan Gilbert, author of "Stumbling on Happiness," challenges the idea that we'll be miserable if we don't get what we want. Our "psychological immune system" lets us feel truly happy even when things don't go as planned.

You probably know the common symptoms of a heart attack: chest and arm pain, shortness of breath and fatigue. But there's another kind that's just as deadly and harder to detect because the symptoms are silent. In this quick talk,...

Body odor is usually normal, but when it's extreme it can be a sign of something gone wrong.

At the intersection of medical invention and indigenous culture, pediatric cardiologist Franz Freudenthal mends holes in the hearts of children across the world, using a device born from traditional Bolivian loom weaving. "The most...

Researchers are working hard to understand the mechanics of Alzheimer's disease and other forms of dementia. So, how close are we to finding a cure?

Malaria vs. Neurosyphilis: the story of an unethical experiment, and its mysterious conclusions.

Donating your blood could save someone's life. And so could donating your poop.

We tend to think of physical blindness like a blindfold, but it’s much more complicated than that, and in some instances, people who have lost their vision can still "see" subconsciously.

What would you do if your hand seemed to develop a mind of its own, beyond your control?

Curious why you can't donate platelets after taking aspirin? Wonder no more!

Many of us have longed for cool sci-fi inventions like a holodeck or replicators, but there's one tool we're actually getting pretty darn close to creating: the medical tricorder.

There are a lot of stereotypes and stigma surrounding alcohol that prevent both understanding and adequate care, and the spectrum of symptoms that alcohol use disorder can include is a lot more complicated than you might think.

Five years ago, TED Fellow Jennifer Brea became progressively ill with myalgic encephalomyelitis, commonly known as chronic fatigue syndrome, a debilitating illness that severely impairs normal activities and on bad days makes even the...

Alzheimer’s is a devastating form of dementia, but we maybe one step closer to finding a way to catching it earlier.

Thirty-nine million people in the world are blind, and the majority lost their sight due to curable and preventable diseases. But how do you test and treat people who live in remote areas, where expensive, bulky eye equipment is hard to...

Scientists have had some success with a new technique to restore awareness to a person in a vegetative state & also that we could potentially use the water cycle to power most of the United States!

The list of symptoms for “Long COVID” are even more vast than the opinions about the right name for the condition. But the more we learn about it, and how it is similar to other post-infection syndromes, the better we can help those who...

A cure for leprosy eluded humans for thousands of years, until the pioneering chemistry work of Alice Ball. With her treatment, patients recovered enough to be discharged from the hospital by the hundreds.

We’ve made a lot of progress recently in curing two deadly diseases that have been difficult to treat!

Parkinson's disease affects 6.3 million people worldwide, causing weakness and tremors, but there's no objective way to detect it early on. Yet. Applied mathematician and TED Fellow Max Little is testing a simple, cheap tool that in...

It's another sweltering morning in Memphis, Egypt. As the sunlight brightens the Nile, Peseshet checks her supplies. Honey, garlic, cumin, acacia leaves, cedar oil -- she's well stocked with the essentials she needs to treat her...