Amazing Facts About Our Body We Never Knew

 Facts About Our Body We Never Knew.....

• The average red blood cell lives for 120 days.
• Our heart beats around 100,00 times every day or about 30 million times in a year.
• Our blood is on a 60,000-mile journey per day.Our lungs inhale over two million litres of air every day, without even thinking. Their surface area is large enough to cover one side of a tennis court.
• We give birth to over 200 billion red cells every day. 
• Our nose is our personal air-conditioning system: it warms cold air, cools hot air and filters impurities. 
• We make around 1 to 1.6 litres of saliva a day.
• A person can expect to breathe in about 45 pounds of dust over his/her lifetime.
• It is believed that the main purpose of eyebrows is to keep sweat out of the eyes. 
• A sneeze generates a wind of 166 km/hr (100 mi/hr), and a cough moves out at 100 km/hr    (60 mi/hr).