Home > Medical > Dementia > Alzheimer's Updated 30 November 2018 SEE: Every 4 seconds a new case of this disease is diagnosed Alzheimer's disease is more than just memory loss. It's a degenerative disease that actually causes the brain to shrink. 0 Mandy Freeman Related articles Being thin doesn't increase your Alzheimer's risk Danish researchers found that gene variants tied to low BMI were not associated with an increased risk for Alzheimer's disease. Can air pollution cause Alzheimer's? Air pollution may cause more than just lung disease, as a new study finds that fine particles from air pollution may be to blame for about 20% of dementia cases. More difficult to diagnose Alzheimer's in women Women tend to have better verbal memory skills than men, which makes it harder to diagnose Alzheimer's disease in women.