If you stop getting thirsty, you need to drink more water. For when a human body is dehydrated, its thirst mechanism shuts off.
Chewing gum while peeling onions will keep you from crying.
Your tongue is germ free only if it is pink. If it is white there is a thin film of bacteria on it.
The Mercedes-Benz motto is 'Das Beste oder Nichts' meaning 'the best or nothing'.
The Titanic was the first ship to use the SOS signal.
The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
Laughing lowers levels of stress hormones and strengthens the immune system. Six-year-olds laugh an average of 300 times a day. Adults only laugh 15 to 100 times a day.
The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear.
Bats always turn left when exiting a cave.