Alzheimer's disease and other types of dementia are the biological
equivalents of slow-motion train wrecks. These degenerative brain
disorders take years to develop. Some factors that predispose
people to develop dementia — such as advanced age and genetic
profile — cannot be changed. Scientists are therefore searching for
modifiable risk factors that would help people reduce their risk of
One area of focus is cigarette smoking. The research so far is
preliminary, but it suggests that smoking increases risk of
developing Alzheimer's disease and other types of dementia.
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