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101 Facts About the Human Body
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By Radhika Venkata
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Contents
Why do we have to constantly blink our eyes? ..................................................10
Why do our eyes water when we cut onions?.....................................................13
Why can't we see well when we go from bright light to a dark room? ....13
Why are people with Color blindness advised not to drive vehicles?........14
Can we walk straight with our eyes closed?........................................................14
How do our eyes interpret a moving object in a movie? ................................15
Where do we get the water for our tears when we cry? ................................15
What is the advantage of having two eyes? ........................................................17
How do our eyes distinguish different colors?....................................................17
Why do some people get pain in their ears in an aircraft? ............................23
Why can't we appreciate tastes if our mouth is dry?.......................................28
Which part of the tongue is sensitive to different tastes?.............................28
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"101 Facts About the Human Body" by Radhika Venkata
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Why can't we smell the same odour after a while? ..........................................29
Why do you sometimes feel dizzy when you get up?.......................................31
What are the Odd Artery and the Odd Vein in our bodies?............................31
How does our body stop bleeding from a cut?....................................................34
Which organs in our body get the most blood? ..................................................35
Why does your heart beat faster when you run?...............................................36
What do I need to know about Hemoglobin? ......................................................37
Who are the universal donors and universal recipients? ...............................38
Why do we feel 'pins and needles' are in our arms and legs?......................39
Breathing and Related Topics.................................................................41
Why can't people breathe and swallow at the same time? ...........................41
Which specialized part of a cell is called the 'Powerhouse”? .......................43
Why are some of our teeth shaped differently from others?........................47
Why do the 4 types of teeth have different shapes?........................................47
Should you take water soluble vitamins every day? ........................................48
Why do we have to chew our food properly? ......................................................49
Why do sportsmen eat bananas during their strenuous activity? ..............49
Why can't some people eat dairy products? ........................................................50
Where do we get our energy if we skip our breakfast and lunch? .............51
Why do you hear growling sounds when you are hungry?............................51
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What is the largest organ of the human body? ..................................................54
Why is clipping our nails painless though it is growing tissue? ..................55
Why are boils dangerous in the central area of the face?..............................56
Why do our lips, palms and soles get chapped in cold weather?................58
Hygiene and Related Topics ....................................................................59
Why should we wash our hands with soap before eating?............................59
Skeleton and Related Topics ...................................................................62
Why are bone fractures more common in old people? ....................................62
What might happen if we didn't have a skeleton in our body?....................66
What does, “Muscles act as Agonists and Antagonists to carry
Why does a child have more bones in their body than an adult?................68
Internal Organs and Related Topics.....................................................71
What is 'The Master gland' in the human body? ................................................71
How does a doctor measure your heart rate? .....................................................72
How and why does your doctor listen to our heart sounds?.........................73
Are there millions of germs in our intestines?....................................................75
How are waste products removed from the body? ...........................................76
Is the absorption surface of a small Intestine as big as a Tennis court? 77
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Can the acid in our stomach dissolve razorblades? ..........................................78
Health and Related Topics .......................................................................81
Is sun light enough for your daily dose of Vitamin D? ....................................81
Should you take water soluble vitamins every day? ........................................81