The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
The levels of two stress hormones, cortisol and epinephrine which suppress the body's immune system, will actually drop after a dose of laughter.
112
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
If you hold farts in during the day, they'll just come out when you sleep.
16
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
21
