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Science Case Study 22/06/11
production of sticky mucus. This makes it difficult to breathe and causes
coughing. (1)
(2)
People with asthma experience symptoms when the airways tighten, inflame, or
fill with mucus.…read more

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Science Case Study 22/06/11
Furthermore, experts have said "many aspects of modern lifestyles such as changes in
housing, diet and a more hygienic environment may have been the risen of asthma
sufferers. Over the years air pollution has improved a lot" (8)
On the other hand others believe cigarette smoke, weather conditions, chemical fumes
and atmospheric pollution may trigger asthma. A sudden change in temperature, cold
air, windy days, poor air quality and hot, humid days could be the triggers of asthma.…read more

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Science Case Study 22/06/11
http://www.bbc.co.uk/health/physical_health/conditions/in_depth/asthma/aboutasthma_index.shtml (7)
(15/06/11)
http://www.asthma.org.uk/all_about_asthma/faqs/ (8) (15/06/11)
http://www.nhs.uk/Conditions/Asthma/Pages/Causes.aspx (9) (15/06/11)
http://www.asthma.org.uk/all_about_asthma/asthma_triggers_az/airpollutants.html (10) (15/06/11)
http://www.goodtoknow.co.uk/health/134368/Whatcanmakeasthmasymptomsworse1 (11) (15/06/11)
http://www.google.co.uk/imgres?imgurl=http://www.glogster.com/media/4/27/85/46/27854657.jpg&imgre
furl=http://www.glogster.com/glog.php%3Fglog_id%3D15116372%26scale%3D54%26isprofile%3Dtrue
&usg=__NNnxEkIo6vn0TwIuNRxBPmCjymg=&h=340&w=393&sz=7&hl=en&start=0&zoom=1&tbnid=
_nnpzPcHb1WO5M:&tbnh=129&tbnw=143&ei=HKf3Tfm2NZHA8QPuha3ICw&prev=/search%3Fq%3
Dfactories%2Bpollution%26um%3D1%26hl%3Den%26sa%3DX%26biw%3D1280%26bih%3D909%26tb
m%3Disch&um=1&itbs=1&iact=hc&vpx=119&vpy=111&dur=477&hovh=209&hovw=241&tx=156&ty=
134&page=1&ndsp=30&ved=1t:429,r:0,s:0 (12 ­ Images) (15/06/11)
http://www.google.co.uk/imgres?imgurl=http://www.glogster.com/media/4/27/85/46/27854657.jpg&imgre
furl=http://www.glogster.com/glog.php%3Fglog_id%3D15116372%26scale%3D54%26isprofile%3Dtrue
&usg=__NNnxEkIo6vn0TwIuNRxBPmCjymg=&h=340&w=393&sz=7&hl=en&start=0&zoom=1&tbnid=
_nnpzPcHb1WO5M:&tbnh=129&tbnw=143&ei=HKf3Tfm2NZHA8QPuha3ICw&prev=/search%3Fq%3
Dfactories%2Bpollution%26um%3D1%26hl%3Den%26sa%3DX%26biw%3D1280%26bih%3D909%26tb
m%3Disch&um=1&itbs=1&iact=hc&vpx=119&vpy=111&dur=477&hovh=209&hovw=241&tx=156&ty=
134&page=1&ndsp=30&ved=1t:429,r:0,s:0 (13 ­ Images) (15/06/11)
http://www.abd.org.uk/topics/asthma.…read more

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