Our brains have a negativity bias and will remember bad memories more than good ones.
15
There are about 1,400 different species of bacteria in your belly button.
10
A woman's sense of smell is most sensitive during ovulation.
34
A new parent will lose about 1055.6 hours of sleep in the first year of their child's life - almost 44 days!
6
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130
A human being loses an average of 40 to 100 strands of hair a day.
133