By weight, Bone is five times stronger than steel.
417
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
Your fingernails grow faster in summer.
744
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Your thumb is about the same size as your nose.
124
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
The largest cell in the human body is the female egg and the smallest is the male sperm.
682