public health

How do pregnancy tests work?

Imagining a new future for health systems in Africa

How we'll fight the next deadly virus

Debunking the myths of OCD

Why do your knuckles pop?

What's the difference between accuracy and precision?

The effects of underwater pressure on the body

What causes bad breath?

What do we do when antibiotics don't work any more?

The troubling reason why vaccines are made too late ... if they're made at all

Why it's so hard to cure HIV/AIDS

Learning from smallpox: How to eradicate a disease

Why sitting is bad for you

How do your kidneys work?

Could a blind eye regenerate?

How do vaccines work?

The benefits of a good night's sleep

Humanity vs. Ebola. How we could win a terrifying war

What we know (and don't know) about Ebola

Should you be able to patent a human gene?

Better toilets, better life

How do germs spread (and why do they make us sick)?

A brief history of melancholy

Solving the sanitation crisis

Where to train the world's doctors? Cuba.

The simple power of hand-washing

What did dogs teach humans about diabetes?

The past present and future of the bubonic plague

What causes antibiotic resistance?

What happens when you get heat stroke?

How bees help plants have sex

How the heart actually pumps blood

Sugar: Hiding in plain sight

Get your next eye exam on a smartphone

How sugar affects the brain

How we conquered the deadly smallpox virus