It is possible to go blind from smoking too heavily.
50
Kissing an infection-free partner is good for your teeth!
141
A person infected with the SARS virus, has a 95-98% chance of recovery.
23
Our brains have a negativity bias and will remember bad memories more than good ones.
15
Only 1% of bacteria cause disease.
45
Your thumb is about the same size as your nose.
124
The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130