The human heart can keep beating outside of the body

And while we’re on the heart, did you know it pumps with enough pressure to squirt blood 30 feet across a room

You know those eyebrows chilling there on your forehead? Well, they also have mites living in them – I imagine they’re pretty chill there too

The average human has 10x more bacteria than human cells living in their body

If you laid your blood vessels end to end, you could circle the globe with them more than twice

There could well be more bacteria living in your mouth than there is humans living on the planet.

In some cases, when people have sustained injuries to their right interior cerebral hemisphere (no idea), they can develop ‘gourmand syndrome’ – an eating disorder in which the person becomes obsessed with eating and thinking about the finer foods in life.

While we’re on the topic of rare disorders, people with exploding head syndrome will hear a loud bang in their head – literally like a bomb exploding – just as they’re about to go to sleep. Which isn’t what anyone wants.

Broken heart syndrome is an actual thing – it mimics a heart attack and is spurred by tragic or stressful situations

When you blush, did you know that the lining of your stomach does too? Yep

There’s a type of tumour that can grow teeth and hair – yes – teeth and hair, you read that correct

You’re shorter when you go to bed than when you wake up. Yep.

And from the age of 30, you should lose half an inch of height every 8 years.

And you can wave goodbye to half of your tastebuds by the age of 60

Kissing (the proper type, with tongues) fights cavities. Anyone for a snog?

Humans actually glow – but the light is too weak to be seen by the human eye.

In the 1940’s, Americans claimed they rarely (pretty much never) dreamed in colour. Experts say it has to do with growing up with black and white TVs.

Humans have a ‘diving reflex’ which uses instincts to shut down certain parts of the body to conserve energy when submerged in cold water. Mammals have the same – so if there was ever another point of the theory of evolution…

Tears that are shed for different reasons (anger, happiness, sadness) are actually made up of different compositions

The brain of a pregnant woman will shrink during pregnancy and it takes around six months after the birth for it to return to normal size