A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
The human brain doesn't stop developing until about 25 years old.
102
Your tongue is the only muscle in your body that is attached at only one end.
173
The average human body contains enough iron to make a small nail.
50
You have no sense of smell when you're sleeping!
72
The average tastebud lives only 10 days before it dies and is replaced by a new one.
15
If you stop working out, it takes twice as long to lose strength than it took to gain it.
16
When your face blushes, the lining of your stomach turns red, too.
154