One in 500 humans has one blue eye and one brown eye.
145
Identical twins do not have identical fingerprints.
79
In one day an average person will take about 18,000 steps.
55
On average a woman has 4 sexual partners in her lifetime.
-143
One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
-86
40% of people who are rejected in romantic love slip into clinical depression.
72
Studies suggest that people who appear to be constantly distracted have more "working memory" and "sharper brains".
13