2012年8月2日星期四

In summer we all hate the mosquitoes

Now I think I am the happiest girl in the world (Diablo 3 Gold), I have met one of the best man in the world, he is good to me and I will try best to be good to him, and I also like to stay with him, he said something that is so moving and I don't mind of him, But have you ever noticed that while you may be driven mad by hovering mozzarella, others are completely unfazed. Is it possible mosquitoes prefer some people over others? Yes they do, says Dr Cameron Webb from West mead Hospital's department of medical entomology in Sydney. And although the reasons behind their preferences are far from certain, it's likely to do with the chemicals in our breath and on our skin. Why the difference? Female mosquitoes are primarily attracted to our body heat and the carbon dioxide we breathe out, which indicate we are warm-blooded animals with the blood they need to develop fertile eggs. So the more carbon dioxide we emit, the more attractive we are to females looking for a protein hit. (Male mosquitoes don't bite). Larger people tend to emit more carbon dioxide than smaller people, as do pregnant women and those who exert themselves. This is why we are often annoyed most by mosquitoes after we play sports and are breathing heavily. Mosquitoes are also attracted to different chemicals on our skin, Webb says, last night I have been byte by some of the mosquito I hate them.

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