[2] Roosters cannot crow if they cannot extend their necks.
[3] Every time you sneeze some of your brain cells die.
[4] When you blush, the lining of your stomach also turns red.
[5] When hippos are upset, their sweat turns red.
[6] If you are right handed, chances are you will tend to chew your food on your right side. If you are left handed, you will tend to chew your food on your left side.
[7] Your tongue is germ free only if it is pink. If it is white there is a thin film of bacteria on it.
[8] The Titanic was the first ship to use the SOS signal.
[9] The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
[10] The average person who stops smoking requires one hour less sleep a night.
[11] 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.
[12] 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.
