The average person's skin weighs twice as much as their brain.
131
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
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
You see your nose at all times, your brain just chooses to ignore it.
30
Your thumb is about the same size as your nose.
124
Your body is creating and killing about 2.4 million red blood cells per second.
17
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127