People with blue eyes are better able to see in the dark.
153
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Women who are romance novel readers are reported to make love 74% more often with their partners than women who do not read romance novels.
136
40% of people who are rejected in romantic love slip into clinical depression.
72
Every three seconds, a new baby is born.
122
A hard working adult sweats up to 4 gallons per day.
39
47% of people have a nightmare at least once a month.
186
There are about 255 babies born worldwide every minute.
46