Some Interesting Body Facts in Microscopic Level
Much
of what takes place in our bodies happens at a level that we simply can't see
with the naked eye. These facts will show you that sometimes that might be for
the best.
1. About 32 million
bacteria call every inch of your skin home. Germaphobes don't need to worry
however, as a majority of these are entirely harmless and some are even helpful
in maintaining a healthy body.
2. Humans shed and
re-grow outer skin cells about every 27 days. Skin protects your delicate
internal organs from the elements and as such, dries and flakes off completely
about once a month so that it can maintain its strength. Chances are that last
month's skin is still hanging around your house in the form of the dust on your
bookshelf or under the couch.
3. Three hundred
million cells die in the human body every minute. While that sounds like a lot,
it's really just a small fraction of the cells that are in the human body.
Estimates have placed the total number of cells in the body at 10-50 trillion
so you can afford to lose a few hundred million without a hitch.
4. Humans shed about
600,000 particles of skin every hour. You may not think much about losing skin
if yours isn't dry or flaky or peeling from sunburn, but your skin is
constantly renewing itself and shedding dead cells.
5. Every day an adult
body produces 300 billion new cells. Your body not only needs energy to keep
your organs up and running but also to constantly repair and builds new cells
to form the building blocks of your body itself.
6. Every tongue
print is unique. If you're planning on committing a crime, don't think you'll
get away with leaving a tongue print behind. Each tongue is different and yours
could be unique enough to finger you as the culprit.
7. Your body has
enough iron in it to make a nail 3 inches long. Anyone who has ever tasted
blood knows that it has a slightly metallic taste. This is due to the high
levels of iron in the blood. If you were to take all of this iron out of the
body, you'd have enough to make a small nail and very severe anemia.
8. The most common
blood type in the world is Type O. Blood banks find it valuable as it can be
given to those with both type A and B blood. The rarest blood type, A-H or
Bombay blood due to the location of its discovery, has been found in less than
hundred people since it was discovered.
9. Human lips have a
reddish color because of the great concentration of tiny capillaries just below
the skin. The blood in these capillaries is normally highly oxygenated and
therefore quite red. This explains why the lips appear pale when a person is
anemic or has lost a great deal of blood. It also explains why the lips turn
blue in very cold weather. Cold causes the capillaries to constrict, and the
blood loses oxygen and changes to a darker color.
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