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~Your brain will stop growing in size when you are about 15 years old.

~If the liver ever stops working a person will die within 8 to 24 hours.

~ore !en than wo!en are "olour blind about 8 out of every 2## !en$ as "o!pared to 1 out of every 2##wo!en.

~%he hu!an heart pu!ps 1.5 !illion gallons of blood a year.

~%he left side of your brain "ontrols your right side of the body and vi"e versa.~It takes 48 hours for your body to "o!pletely digest the food fro! one !eal.

~&tuttering is 4 to ' ti!es !ore "o!!on in boys than girls.

~%wo nor!al kidneys "ontain 2 !illion tiny blood filters whi"h filter 5# gallons of blood every day.~( s"ientist who weighed people i!!ediately before and after death "on"luded that hu!an soul weighs

21 g!s.

~)ur nerves trans!it !essages at up to *## ft per se"ond.

~+o two outer ears ,pinnae- even your own are e/a"tly alike. %here are so!e key identifi"ation pointson the outer ear that do not "hange throughout one0s life. arology$ as the syste! is "alled$ was developed

to supple!ent identifi"ation by fingerprints.

~%he !us"le of the hu!an aw e/ert a for"e of over 213 kgs.

~%he nail on our !iddle finger grows fastest. %he nail on the thu!b grows slowest.~%he !ost "o!!on disease of the world is toothde"ay.

~)ne fifth of the o/ygen we inhale is used up by the "ells in the brain.~It is i!possible to sneeze and keep your eyes open at the sa!e ti!e.

~hen you were only a fertilized egg you were about the size of the head of a pin

~an0s threepound brain is the !ost "o!ple/ and orderly arrange!ent of !atter known in the universe.~)n average$ we lose 11 oz. of weight while we are asleep at night.

~%he hu!an eye "an distinguish about 16$### different "olours.

~%here are !ore than '## !us"les in our !us"ular syste!.

~7lind people who have been blind fro! birth "annot drea! sights but they drea! sounds instead.~he!i"ally the substan"e that is "losest to hu!an blood is sea water.

~You have about *$### taste buds on your tongue.~&leepwalking is !ore "o!!on in "hildren than adults.~e die !ore 9ui"kly fro! la"k of sleep than la"k of food.

~It takes 16 !us"les to s!ile and 4# !us"les to frown

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1. %he sto!a"h:s digestive a"ids are strong enough to dissolve zin". ;ortunately for us$ the "ells in the

sto!a"h lining renew so 9ui"kly that the a"ids don:t have ti!e to dissolve it.

2. %he lungs "ontain over *##$### !illion "apillaries ,tiny blood vessels-. If they were laid end to end$

they would stret"h 24##k! ,15## !iles-.

*. ( !an:s testi"les !anufa"ture 1# !illion new sper! "ells ea"h day < enough that he "ould repopulate

the entire planet in only ' !onths

4. =u!an bone is as strong as granite in supporting weight. ( blo"k of bone the size of a !at"hbo/ "an

support 3 tones < that is four ti!es as !u"h as "on"rete "an support.

5. a"h finger and toenail takes si/ !onths to grow fro! base to tip.

'. %he largest organ in the body is the skin. In an adult !an it "overs about 1.3!2 ,2#s9 ft-. %he skin"onstantly flakes away < in a lifeti!e ea"h person sheds around 18kg ,4# lb- of skin.

6. hen you sleep$ you grow by about 8!! ,#.*in-. %he ne/t day you shrink ba"k to your for!er height.

%he reason is that your "artilage dis"s are s9ueezed like sponges by the for"e of gravity when you stand or

sit.

8. %he average person in the west eats 5# tones of food and drinks 5#$### litres ,11$### gallons- of li9uid

during his life.

3. a"h kidney "ontains 1 !illion individual filters. %hey filter an average of around 1.* litres ,2.2 pints-

of blood per !inute and e/pel up to 1.4 liters ,2.5 pints- a day of urine.

1#. %he fo"using !us"les of the eyes !ove around 1##$### ti!es a day. %o give your leg !us"les the

sa!e workout$ you would need to walk 8#k! ,5# !iles- every day.

11. In *# !inutes$ the average body gives off enough heat ,"o!bined- to bring a half gallon of water to

boil.

12. ( single hu!an blood "ell takes only '# se"onds to !ake a "o!plete "ir"uit of the body.

1*. ( foreskin$ the size of a postage sta!p$ fro! "ir"u!"ised babies take only 21 days to grow skin that

"an "over three ,*- basketball "ourts. (!azing isn:t it. %hanks to s"ien"e. %he laboratorygrown skin isused in treating burn patients.

14. %he eyes re"eive appro/i!ately 3# per"ent of all our infor!ation$ !aking us basi"ally visual"reatures.

15. %he fe!ale ovaries "ontain nearly halfa!illion egg "ells$ yet only 4## or so will ever get the

opportunity to "reate a new life.