The human brain is more active during sleep than during the day.
28
Clinophobia is the fear of beds!
30
Fidgeting can burn about 350 calories a day.
201
Your thumb is about the same size as your nose.
124
Scientists estimate that laughing 100 times is equivalent to a 10-minute workout on a rowing machine.
202
Sitting straight upright in your chair is bad for your back. You should instead slouch at an angle of 135 degrees.
10
In one day, adult lungs move about 10,000 litres of air.
11