A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
Human hair and fingernails continue to grow after death.
7
In one day, adult lungs move about 10,000 litres of air.
11
Your thumb is about the same size as your nose.
124
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 average person's skin weighs twice as much as their brain.
131
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k