© smarterpix.com  / Kzenon “By staying active, we are able to maintain a healthy vascular system so that the blood vessels stay flexible and retain the

© smarterpix.com  / AndreyPopov Exactly how Alzheimer’s disease develops is not well understood, but an imbalance of iron in the brain might just play a role.

© smarterpix.com  / Monkeybusiness Risk factors for dementia vary by ethnicity, study finds Modifiable risk factors—including hypertension, obesity, diabetes, low HDL cholesterol and sleep disorders—confer a