Word: dementia
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Dates: during 2000-2009
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Secondhand smoke, once considered a mere nuisance, has proved to be far more harmful. It can lead to lung cancer and heart disease, exacerbate asthma and cause pneumonia and bronchitis in babies. Now, a new study links it to another serious condition: dementia in adults...
...study published Feb. 13 in the British Medical Journal found a significant increase in the risk of dementia and other forms of cognitive impairment in people over 50 who have been exposed to high levels of secondhand smoke. (See pictures of vintage pro-smoking advertisements...
Previous research has linked active smoking with cognitive impairment. But this is the first large-scale study to associate secondhand-smoke exposure to dementia and other neurological problems in older populations...
Alzheimer's and dementia experts think that the mediating factors between secondhand smoke and cognitive impairment could be heart disease and stroke; secondhand-smoke exposure raises the risk of heart disease and stroke, which in turn raise the risk of dementia...
Studies have shown that diabetes may speed up aging-related deficits in mental function and lead to a twofold increase in the risk of dementia. Some researchers have speculated that diabetes could even boost the risk of developing Alzheimer's disease. Roger Dixon, a psychologist at the University of Alberta in Canada, wanted to learn whether this was true and set out to study exactly how uncontrolled blood sugar affected the brain...