B2 Reading practice

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Abigail Jimenez

Mexico

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Compléter B2 Reading practiceVersion en ligne Duolingo C-test practice par Abigail Jimenez 1 people from per by old evidence headaches such findings said revealed The risk of a severe headache rose by 7 . 5 cent for every 5C rise in temperature . Falls in barometric pressure in the previous 48 to 72 hours also had an effect , though to a lesser extent . But other effects as humidity and air pollution had no impact , the findings . The results of the study , scientists at the Beth Israel Deaconess Medical Centre in Boston , in the United States , provide for a piece of clinical folklore . But they do not explain the link , or what mechanism may lie behind it . Kenneth Mukamal , who led the study published in Neurology , : " Our results are consistent with the idea that severe can be triggered by external factors . These tell us that the environment around us does influence our health and , in terms of headaches , may be impacting many , many . " About 18 per cent of women and 6 per cent of men suffer migraines , which are more common among the young than the , and impose a huge drain on the economy from sickness absence . Migraines are known to be set off by triggers , including certain foods , alcohol , stress and hormones . But controversy has surrounded the supposed link with the weather . Dr Mukamal added that patients should try to identify the triggers that lead to their headaches .