Some people faint after they pee.
Your ovaries/testes developed in the same place as your kidneys.
You won't be able to move your ring finger when you put your hand on a flat surface like this.
Your left kidney is higher up than your right kidney.
You can maintain your blood sugar without eating for up to 2 or 3 days.
Adults have fewer bones than a baby.
There are about 7000000000000000000000000000 atoms in a human body.
Every atom in your body is billions of years old.