When Both Parents Have Alzheimer's

A recent study reports that if both parents have Alzheimer's, the risk of dementia in their offspring doubles. The risk of developing Alzheimer's for the general public is approximately 6-13%; however the risk increases to 22.6%  chance if both parents had the disease.

The bad news is that most of the people in the study were younger than 70.  Since the risk of developing Alzheimer's naturally increases with age, in all likelihood the actual risk of developing the disease if both parents had it may be higher than reported.