Recently made researches has shown, that middle aged people who smoke, have high blood pressure or diabetes are far more likely to develop dementia in later life. Estimates show that one of six people older than 70 have dementia.
Current smokers were 70% more likely than those who had never smoked to develop dementia, people with high blood pressure were 60% more likely than those without high blood pressure, and people with diabetes were more than twice as likely than those without diabetes to develop it.
As part of the study, the researchers identified 203 cases of hospitalization with dementia increased exponentially with age in men and women and in different ethnic backgrounds. The reasons are known, smoking, high blood pressure and diabetes were all strongly associated with dementia in white participants and African-Americans.
It was shown, that African-Americans (especially, African-American women) had a two and a half times higher rate of hospitalization than white people.
It must be noted, that obese/overweight and dementias in later life are not connected.
The authors say that smoking cessation and control of high blood pressure and diabetes in midlife may have decrease dementia hospitalization risk for further.

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