The happier you are, the less sleep you require to function in everyday life. Sadness increases the urge to sleep more.
When you're talking to someone, cross your arms to check if they're listening. If they cross theirs as well, they truly are.
Drinking chocolate milk has been proven to help relieve muscle soreness after a workout.
Taking short naps is actually more effective than taking longer ones.
Falling air pressure causes pain in bird's ears, so if birds are flying low to the ground it almost always means a thunderstorm is coming.
Beauty sleep is not a myth, people who sleep more are more attractive than people who are sleep deprived.
If you're ever at a Japanese restaurant, never ever rub your chopsticks together. It's a gesture that's extremely offensive to the chef.
Sleeping on your right side helps you fall asleep faster than sleeping on your left.