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Did you know that nearly 75 per cent of your body is made up of water ? That one of the main health hazards in the west is caused by over-eating ce...

Your final volume includes : An easy-to-use index list of featured sports list of title in the collection how my body works wordsearch .

Did you know Not so long ago, before inoculations , it was quite common for children to suffer badly , and even die , if they caught an infectious ...

Did you know that in days gone by there were no hlidays? That taking a break can actually help us work better ? We find out how important leisure t...

Did you know that some people have lived for 120 years ? That we spend about a third of our lives asleep ? In this issue how my body works you wil...

Did you know that an adult needs about 9000 liters of air to breathe every day ? That smoking causes more harm to your lungs and breathing than any...

Did you know that you sleepwalk with your eyes open and may follow your usual daytime routine ? You will find out what has made you the way you are...

Did you know that food is broken up by saliva as well as by chewing ? That food can cause severe stomach upsets if you are allergic to it ?

Did you know that footballers need flexible ankles and feet so that they can control the ball ? You will find out about the popular ball games of f...

Did you know that the martal arts are popular in for eastern countries and involve the mind as well as teh body ? You will find out that fighting ...

Did you know that further accidents may be caused by people looking at an earlier accident ? We find out how we should act if we are at the scene ...

Did you know that suffocation can occur even when there is lots of air to breathe ? That mouth to mouth resuscitation may have to go on for up to 2...

Did you know that swimming is an aerobic exercise , which conditions the lungs and muscles ? You will find out why smimming is the perfect sport fo...

Did you know that untl 1970 the streets of london wrer filled with thick smog ? That phagocytes in your body swallow bacteria and other harmful inv...

Did you know that the biosphere is the zone on earth where all living brings are at home ? That all living beings depend on each other to survive? ...

Did you know that the first operations were performed in caves by prehistoric men ? That some modern medicines still contain extracts of herbs and ...

Did you know that your body has a number of different defence system to protect itself from dangerous viruses and bacteria ? This volume tells you ...

Did you know that there is a second fluid in your body which is just as important as blood ? You will find out about the lymphatic system

Did you know that there are some people who can identify more than 10,000 different smells and tastes ? Your nose and tongue depend upon each other...

Did you know that the skin is your body's largest organ ? This secnd volume of how my body works tells you all about your skin - it is waterproof a...

Did you know that a windsufer needs a good sense of balance to control the surfboard ? You will discover how to get fit for and enjoy some popular ...

Did you know an increase in the body's temperature by just 1 c raises the strenght of its defence mechanism by half ? That yoga exerises the mind a...

Did you know that you don't even have to be in the snow to practise skiing? You will find out that some sports , such as skiing horse riding and cl...

Did you know that your eye works like a camera ? That it peojects everything upside down and back to front and that it is only in the brain that th...