Heavy Midlife Smoking Raises Risk of Dementia Years Later

Analysis of prospective data from a multiethnic group of over 21,000 members of a health care system has found over a follow-up period of 23 years that the risk for dementia increased as the amount of smoking increased (fully-adjusted data). Specifically, those who smoked more than two packs a day in midlife had more than 2 times the…

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