A single car has about 25,000 parts, and a Boeing 747 has over 45 million parts. Then, what about the human body? Our body has about 10 trillion cellular tissues, 25 trillion red blood cells, and 25 billion white blood cells, and the tongue alone has 9,000 taste cells. The heart which weighs only 300 grams beats over 100,000 times and pumps 7,200 liters of blood a day and flows continuously through blood vessels in the body at the speed of 216 km/h (134 miles/h).
Every day, the lung breathes in and out nearly 20,000 times and breathes in 10,000 liters of air. The brain which is 2.5% of the body weight has 14 billion nerve cells and 7 millions of brain cells work every day to help you think. Though you don’t make efforts or give orders, all the parts silently do their own roles with no rest. In this sense, there is no better description than “marvelous and wondrous.”
Without cost, we were given by birth such unsurpassed body which cannot be compared with any elaborate machine. This fact alone can be an enough reason for us to do things valuable and rewarding while living on the earth.