The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130
Research indicates that babies who suck on pacifiers are more prone to ear aches.
21
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
In Nepal, cow dung is used for medicinal purposes.
19
If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33