Researchers are deliberately infecting healthy human volunteers with the virus that causes COVID-19 — would you sign up for a trial?

The Johnson & Johnson vaccine has been granted emergency use authorization by the US FDA — here’s what makes it different from the Moderna and Pfizer vaccines.

Our ears don’t just allow us to hear, they also give us our sense of balance — here’s how.

It's common to see how long you can hold your breath for, but how does your body know when you’re at your breaking point?

The anatomical separation between our blood and brain keeps us safe from potential harm — here’s how.

The Pfizer and Moderna vaccine ingredients, explained.

The science behind testosterone, the muscle building hormone.

How your body feels pain on a physiological level.

The digestive system does more than break down food — here's how it fights pathogens and why it’s so important for survival.

Inflammation is a natural biological process, and we need some of it to keep us safe — here’s why inflammation is necessary for survival.

The bubonic plague isn't a disease of the past — it still exists today, and here's why.

The common cold is the most common human disease in the world — here's why we haven't found a cure yet.