If a person has a cold you are more likely to catch it by shaking hands with them than by kissing them.
You shed and regrow your outer skin cells approximately every 27 days,which means you will have nearlly 1,000 new skins in a lifetime.
During a typical lifetime one person will produce around 23,660 L of saliva-that`s enough saliva to fill two swimming pools.
Except for your brain cells, 50 million of the cells in your body will have died and been replaced by others,while you have been reading this sentence.
If a person has a cold you are more likely to catch it by shaking hands with them than by kissing them.
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