Aristotle believed the heart provided the ability to think, and the brain was just a heat sink for the heart.
Humans are bioluminescent. However, the light emitted by the body is 1000 times weaker than our eyes can pick up.
When a pregnant woman suffers organ damage (ex: a heart attack), the fetus will send stem cells to repair the damaged organ.
There is a weight limit for donating your body to science.
If your immune system received access to the inside of your eyes, it would attack and destroy them as invaders. Similarly, if you damage one of your eyes and it isn’t removed and stays in your eye socket your body will make antibodies against it, which will end up attacking and destroying your good eye. …and this sometimes happens.
You can’t kiss your elbows.
There is about 0.2 milligrams of gold in your body, most of which is in your blood (you’d need 40,000 people to collect enough gold to make one 8g sovereign).
The brain can be kept alive outside the body for days.