A M A Z I N G H U M A N F A C T S : ( If you have the time to
read about you :) ) Except for your brain cells, 50,000,000 of
the cells in your body will have died and been replaced with
others, all while you have been reading this sentence. More than
half the bones in the human body are in the hands and feet. The
highest recorded “sneeze speed” is 165 km (102 miles) per hour.
( they checked that The heart beats about 3 billion times in the
average person’s lifetime. A newborn baby has 350 bones, but a
fully-grown adult has only 206. Our lungs inhale over two
million liters of air every day, without even thinking. The
surface area of the lungs is approximately the same size as a
tennis court. Food will get to your stomach even if you’re
standing on your head. Research has shown that guilt damages
your immune system by lowering your immunoglobulin levels. The
total length of your circulatory system stretches an amazing
60,000 miles. That is more than twice the distance around the
Earth. In one square inch of sk