Kissing an infection-free partner is good for your teeth!
141
Human teeth are almost as hard as rocks!
47
The average sperm cell swims at 8 inches per hour.
76
When you take a step, you are using up to 200 muscles.
886
If you stop working out, it takes twice as long to lose strength than it took to gain it.
16
You would need to smoke between 20,000-40,000 joints to be at risk of dying of a THC overdose.
12
Fidgeting can burn about 350 calories a day.
201
Your ears secrete more earwax when you are afraid than when you aren't.
229