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 idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
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.
22
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55