After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
Your heart will pump about 212 million liters in its lifetime.
26
Yawns are more contagious among people with closer relationships.
163
Chewing gum boosts your brain power.
285
Enamel is hardest substance in the human body.
61
The average person's skin weighs twice as much as their brain.
131
The human brain doesn't stop developing until about 25 years old.
102