Topic: illness

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How does your immune system work?

The immune system is a vast network of cells, tissues, and organs that coordinate your body’s defenses against any threats to your health. Without it, you’d be exposed to billions of bacteria, viruses, and toxins that...

How Far Do Sneezes and Vomit Travel? – Gross Science

Let's enter the world of sneeze experiments and vomiting machines with Anna Rothschild as she explains just how far the tiny liquid particles from sneezes and vomit can travel... and it's farther than you think. 'Vomi...

Immunity and Vaccines Explained – NOVA PBS

Why do we get shots when visiting the doctor? How do vaccines work with our immune systems to keep us from getting sick? From NOVA PBS: Immunity and Vaccines Explained. Our bodies are bombarded by bacteria and ...

The beautiful physics and math of sneezes

If you don't cover your mouth when you sneeze, that sneeze and the germs within it are explosively set free into the surrounding area. But where do the droplets travel and how far can they reach? No one had done much ...

Flu Attack! How A Virus Invades Your Body

How does a virus invade your body? With the help of medical animator David Bolinsky, Robert Krulwich explains how a flu virus can multiply with the help of a single cell in this NPR video fro...

Catching Up With Flu: Using the Web as an early warning signal

When sick people search the Web for remedies or tweet about their symptoms, they’re sending an early warning signal about disease outbreaks. Now scientists and public health officials are listening in. ...

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