(1) Our mouth produces about one to two liters of saliva in one day !!
(2) In human body heart beats more than four billion times in his lifespan.
(3) In human body highest blood flow is in kidney which is natural filtering system of our body.
(4) Femur is the longest and thickest bone in human body which is located in human leg part.
(5) human body contains high amount of fat which is enough to produce seven bars of soap.
(6) In human body, cornea is the only part that not exists any blood vessels mean no supply of blood But get oxygenation directly from outer air.
(7) Teeth is the only part of human body that not heal after damaging the enamel of teeth. The enamel of teeth is very sensitive to hot and cold foods.
(8) human body have two kidneys but only one kidney is enough for body excretory system.
(9) human nose is sensitive enough to sense 1 trillion different different type of smells.
(10) The pineal gland located on the back portion of brain, got it's name from shape of pineal gland, look like a pine nut.
(11) Nerve impulses generate in brain contain 270 km/hr speed which impulses send to body's other parts.
(12) The total length of human body's blood vessels is around 1,09,000.
(13) when you blush, your stomach also turn into reddish color.
(14) At least 750 enzymes are active in body.
(15) On earth only 10% of humans are left handed.
(16) Human body loses around 4 kg of skin In one year!!
(17) Human species is only species know to blush.
(19) Smallest bone located in the middle part of ear. The staple bone in middle ear is only 2.8 millimeters long.
(20) Human red blood cells are carrying oxygen from the lungs and transfer to the all body part cells.
(21) Red blood cells in body created inside the red bone marrow.
(22) Human body take around 12 hours to complete digestion of eaten food.
(23) In humans smell sense is 11000 time more sensitive than taste sense.
(24) 50,000 cells in our body is died and replaced by new cells while you reading this one sentence.
(25) Human heart pump 185 million blood in body during the average lifespan.
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