The human eye blinks an average of 4,200,000 times a year.
233
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
If the human eye was a digital camera, it would have 576 megapixels.
25
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
You forget 90% of your dreams.
256
Your thumb is about the same size as your nose.
124
It takes approximately 12 hours for food to entirely digest.
93
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89