The average person's skin weighs twice as much as their brain.
131
Your thumb is about the same size as your nose.
124
A person can live without food for about a month, but only about a week without water.
156
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
The human sigh acts as a physiological reset button.
23
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
