It takes 17 muscles to smile, 43 to frown.
65
The human brain doesn't stop developing until about 25 years old.
102
Human thigh bones are stronger than concrete!
63
Putting sugar on a wound or cut will greatly reduce pain and speed up the healing process.
25
More people have a phobia of frogs than rats.
41
The aorta, the largest artery in the body, is almost the diameter of a garden hose.
37
A new parent will lose about 1055.6 hours of sleep in the first year of their child's life - almost 44 days!
6
The average person who stops smoking requires one hour less sleep a night.
79