It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Babies cry but they don't produce tears until one to three months after birth.
238
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
On average women can hear better than men.
170
Humans blink over 10,000,000 times a year!
97
Women who read romance novels have sex twice as often as those who don't.
101
People who are lying to you tend to look up and to the left (their left).
178