The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
Foreign accent syndrome is a rare brain disorder which causes people to speak in a foreign accent involuntarily.
15
Your thumb is about the same size as your nose.
124
If you are bitten by a poisonous snake, and fail to receive medical attention, you still have a 50% chance of survival.
28
A sneeze can travel as fast as 100 miles per hour.
43
Smokers get ten times more wrinkles than non-smokers.
171
It takes about 20 seconds for a red blood cell to circle the whole body.
102