Some Facts

• Every hour one billion cells in the body must be replaced.
• Human thigh bones are stronger than concreate.
• Our eyes are always the same size, but our nose and ears never stop growing.
• Babies eyes do not produce tears until the baby is approximately 6 to 8 weeks old.
• The smile is the most frequently used facial expression.
• One out of 20 people have an extra rib.
• People with darker skin will not wrinkle as fast as people with lighter skin.
• Hair is made from the same substance as finger nails.