Heart disease has been linked to risk for dementia. But it is not clear which types of dementia are related to heart problems.

A multiple sclerosis drug may work double duty. It has been shown in a lab study to prevent and even reverse one of the leading causes of heart attack.

Irregular heartbeat isn't usually life-threatening. It is relatively easy to manage. However, those with the disorder may be at a heightened risk for developing dementia, including Alzheimer's disease.

As people grow older, they have a higher risk of heart problems and broken bones. In fact, there may be a relationship between heart failure and bone loss.