A person can live without food for about a month, but only about a week without water.
156
The average person's skin weighs twice as much as their brain.
131
The human brain is more active during sleep than during the day.
28
You can't tickle yourself.
29
Your fingernails grow faster in summer.
744
The human eye blinks an average of 4,200,000 times a year.
233
Human hair and fingernails continue to grow after death.
7
In one day, adult lungs move about 10,000 litres of air.
11