Now you Know

81. Fact
Humans shed and regrow outer skin cells about every 27 days.

82. Fact
Three hundred million cells die in the human body every minute.

83. Fact
Humans shed about 600,000 particles of skin every hour.

84. Fact
Every day an adult body produces 300 billion new cells.

85. Fact
Every tongue print is unique.

86. Fact
Your body has enough iron in it to make a nail 3 inches long.

87. Fact
The most common blood type in the world is Type O.

88. Fact
Human lips have a reddish color because of the great concentration of tiny capillaries just below the skin.

89. Fact
The colder the room you sleep in, the better the chances are that you'll have a bad dream.

90. Fact
Tears and mucus contain an enzyme (lysozyme) that breaks down the cell wall of many bacteria.

91. Fact
Your body gives off enough heat in 30 minutes to bring half a gallon of water to a boil.

92. Fact
Your ears secrete more earwax when you are afraid than when you aren't.

93. Fact
It is not possible to tickle yourself.

94. Fact
The width of your armspan stretched out is the length of your whole body.

95. Fact
Humans are the only animals to produce emotional tears.

96. Fact
Right-handed people live, on average, nine years longer than left-handed people do.

97. Fact
Women burn fat more slowly than men, by a rate of about 50 calories a day.

98. Fact
Koalas and primates are the only animals with unique fingerprints.

99. Fact
The indentation in the middle of the area between the nose and the upper lip has a name.

100. Fact
Did you know that there are 206 bones in the adult human body and there are 300 in children (as they grow some of the bones fuse together).


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