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 brain can stay alive for 4 to 6 minutes without oxygen. After that cells begin die.
193
If you unfolded your brain, it would cover an ironing board.
42
One out of 20 people have an extra rib.
66
Redheads require more anesthesia to 'go under' than other hair colors do.
50
You inhale about 700,000 of your own skin flakes each day.
29
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
