When getting laser eye surgery, you can smell the parts of your eyes being shaved down.

If the average person lived for 71 years and walked by at least 10 people per day, the average person would walk past at least 16 murderers in their lifetime.

Tiny bugs called demodex mites live on your face and eat your dead skin. They’re spread through skin-on-skin contact.

There is a terrifying parasite called cymothoa exigua that destroys the tongue of a fish and then replaces the tongue with its own body.

In 1518, there was a dancing plague where nearly 400 people started to involuntary dance for several days without stopping. Physicians assumed that they were shaking off a fever. Some people died of a heart attack, exhaustion, or even strokes.

Dying due to being encased in concrete is horrifying. You don’t crush or asphyxiate so much as burn as the concrete sucks all the moisture from your body; also, it lets off heat as it dries.

A jellyfish’s mouth is also its anus.

Some tumors can grow teeth, be filled with hair, or develop organs of their own.

If bodies are kept in coffins that are sealed tight enough, such as in a wall type of memorial, sometimes enough gases can build up that the body basically explodes and can spill out onto the ground.

The Troxler Effect is an optical illusion that affects how you perceive things, both visually and mentally. This happens when you stare at a mirror in the dark for too long.

When you swim in the ocean, you’re basically bathing in a giant graveyard. Throughout history, hundreds of thousands of people have died or been buried at sea.

Only 43% of the total cells in your body are actually a part of you. More than half of ‘you’ is foreign bacteria, viruses, and fungi.

During the French Revolution, where the guillotine was introduced, the people to be executed fought to be first, as the blade would dull after multiple uses and wouldn’t cut a head clean off at the first attempt.

When you die, you will be aware you are dead until the moment your brain fully ceases function.

When whales reach a certain age, they will eventually be too weak to swim back to the surface for air. So they will just suffocate to death and eventually sink to the bottom of the ocean.