A recent study suggests that environmental tobacco smoke exposure is associated with dementia risk. Researchers interviewed 5921 elderly individuals across five provinces in China about their tobacco smoke exposure. About one quarter of participants had some degree of dementia. The chance of developing severe dementia was significantly linked to the level of second hand smoke exposure. This association held for both smokers and non-smokers. Furthermore, the risk of dementia increased with both the level and duration of tobacco smoke exposure. Read more here.
Study mentioned: Chen R, et al. Association between environmental tobacco smoke exposure and dementia syndromes. Occup Environ Med. 2013 Jan;70(1):63-9. Epub 2012 Oct 26. PMID: 23104731
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