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Link: http://www.sciencedaily.com/releases/2016/02/160211082311.htm

Despite the concern of an explosion of dementia cases in an aging population over the next few decades, a new study, based on data from the Framingham Heart Study (FHS), suggests that the rate of new cases of dementia actually may be decreasing.

These findings, which appear in the New England Journal of Medicine, provide hope that some cases of dementia might be preventable or delayed and encourages funding agencies and the scientific community to further explore demographic, lifestyle and environmental factors underlying this positive trend.

The study says that while the number of folks with dementia is increasing due to the increasing number of over-65 people in the population, the percentage of these with dementia is going down.

The primary reason appears to be improved cardiac health, mostly from less tobacco smoking.

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