There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
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
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
Pain occurs when sounds are above 130 db.
124
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23