Hay Fever 花粉过敏症
[audio]http://file.24en.com/bbc/tae/assets_5318413/bbc_tae_271_hay_fever_au_bb.mp3[/audio][color=#3f3f3f][font=Verdana, 宋体, helvetica, arial, sans-serif][size=12px][p=21, 2, left]The UK has been enjoying some lovely summer weather recently. Brits have been making the most of the [b]sunny spell[/b] by [b]flocking[/b] to the beach and having barbeques in their gardens.[/p][p=21, 2, left]But there is often an unwelcome [b]accompaniment[/b] to the sounds of[b]sizzling[/b] sausages on the barbeque and [b]buzzing[/b] bees in the flowers. The[b]clamour[/b] of sneezing and people [b]blowing their noses[/b] makes an unpleasant soundtrack to Britain's best summer weather. What is going on?[/p][float=right][img=226,170]http://www.24en.com/d/file/bbc/bbc2/2010-07-01/c3ddef8d2d3b8842658d817a9019193f.jpg[/img][p=30, 2, left]Summer means sun, bees and... hay fever for some[/p][/float]
[p=21, 2, left]It is hay fever, an [b]allergic [/b]reaction to [b]pollen[/b] from trees, grass and other plants. When the pollens come into contact with the [b]tissue[/b]inside the nose, they start an[b]immune reaction[/b] that causes sneezing, [b]itching[/b] and a [b]runny nose[/b].[/p][p=21, 2, left]Between 15 and 20% of people in the UK are thought to be affected by hay fever, with the numbers being even higher among teenagers.[/p][p=21, 2, left]Allergy specialist Professor Stephen Durham has calculated that the number of sufferers has doubled over the last twenty years. What is causing the rise?[/p][p=21, 2, left]"There's some evidence that pollution [b]exacerbates[/b] it," he says. "And you've also got the hygiene [b]hypothesis[/b] - that our bodies aren't as strong because we aren't [b]exposed [/b][b]to [/b][b]infections[/b] when we are small children that our systems rebel against."[/p][p=21, 2, left]There is interesting evidence from Austria to suggest that hay fever is related to living in an increasingly [b]sanitised[/b] environment.[/p][p=21, 2, left]Researchers there found that young children in regular contact with farm animals are less likely to develop allergies later on. Children living on farms were found to be three times less sensitive to hay fever and nearly four times less likely to suffer from [b]asthma[/b] than those living in a [b]non-rural[/b] environment.[/p][p=21, 2, left]Perhaps the worst news for hay fever sufferers is that their [b]ailment[/b] can never be cured completely. So perhaps it's time we got used to a... a... a... [i]achoo[/i]![/p][/size][/font][/color] sunny spell after rain.雨过天晴
rain spell 雨期
a runny nose 流鼻涕
So, it seems that people living in rural areas are more lucky. [b]回复 [url=http://bbs.tingroom.com/redirect.php?goto=findpost&pid=398970&ptid=187735]2#[/url] [i]xuxiaolin[/i] [/b]
living in the rural areas have a lot of advantages.........
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