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  Professor Wi, what do you. Have to say that?

  On the question of noise and health, certain very loud noises actually damage the brain, but there is no evedence linking to brain damage.  There has, however, been some research suggesting that aircraft noise associated with an increase in certain symto illness, such as irritably, depression. The effect definitely exist, but its fairly weak and typically only cause problems small percentage of the population. So it cant be said to be a majjor problem.  Incidentally, most traffic experts believe that a third airport.there some reduction air traffic: the new airport would simply increase the total volume the of London.