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Top 15 Amazing Facts Aboutthe Human Body - Health - Nairaland

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Top 15 Amazing Facts Aboutthe Human Body by Josh1000: 11:52pm On Sep 29, 2014
1. The stomach’s digestive acids are
strong enough to dissolve zinc. Fortunately
for us, the cells in the stomach lining renew
so quickly that the acids don’t have time to
dissolve it.
2. The lungs contain over 300,000 million
capillaries (tiny blood vessels). If they were
laid end to end, they would stretch 2400km
(1500 miles).
3. A mans testicles manufacture 10 million
new sperm cells each day – enough that he
could repopulate the entire planet in only 6
months!
4. Human bone is as strong as granite in
supporting weight. A block of bone the size
of a matchbox can support 9 tonnes – that
is four times as much as concrete can
support.
5. Each finger and toenail takes six months
to grow from base to tip.
6. The largest organ in the body is the skin.
In an adult man it covers about 1.9m2
(20sq ft). The skin constantly flakes away
– in a lifetime each person sheds around
18kg (40 lb) of skin.
7. When you sleep, you grow by about
8mm (0.3in). The next day you shrink back
to your former height. The reason is that
your cartilage discs are squeezed like
sponges by the force of gravity when you
stand or sit.
8. The average person in the West eats 50
tonnes of food and drinks 50,000 liters
(11,000 gallons) of liquid during his life.
9. Each kidney contains 1 million individual
filters. They filter an average of around 1.3
liters (2.2 pints) of blood per minute, and
expel up to 1.4 liters (2.5 pints) a day of
urine.
10. The focusing muscles of the eyes move
around 100,000 times a day. To give your
leg muscles the same workout, you would
need to walk 80km (50 miles) every day
11. In 30 minutes, the average body gives
off enough heat (combined) to bring a half
gallon of water to boil.
12. A single human blood cell takes only
60 seconds to make a complete circuit of
the body.
13. A foreskin, the size of a postage stamp,
from circumcised babies take only 21 days
to grow skin that can cover three (3)
basketball courts. Amazing isn’t it. Thanks
to science. The laboratory-grown skin is
used in treating burn patients.
14. The eyes receive approximately 90
percent of all our information, making us
basically visual creatures.
15. The female ovaries contain nearly half-
a-million egg cells, yet only 400 or so will
ever get the opportunity to create a new
life.
Sources: Reader’s Digest Book of Facts

listverse.com/2008/06/10/top-15-amazing-facts-about-the-human-body/
Re: Top 15 Amazing Facts Aboutthe Human Body by PROCTOR: 12:01am On Sep 30, 2014
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