Your thumb is about the same size as your nose.
124
The human brain uses approximately as much energy as a 10 watt light bulb.
120
The average person's skin weighs twice as much as their brain.
131
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
The average sperm cell swims at 8 inches per hour.
76
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
The human brain doesn't stop developing until about 25 years old.
102