Study: 1 in 3 Alzheimer's Cases 'Preventable'

"...Researchers analyzed population-based data to work out the seven top risk factors for developing Alzheimer's disease. These are:

Lack of exercise
Diabetes
High blood pressure in middle age
Obesity in middle age
Depression
Smoking
Low education..."

http://www.webmd.com/alzheimers/news/20140714/study-1-3-alzheimers-cases-preventable