Alzheimer's Disease International estimates that the number of people living with dementia worldwide - nearly 44 million in 2014 - will almost double by 2030 and more than triple by 2050.

There is no single test that can show if a person has Alzheimer's, but doctors can almost always determine if a person has dementia, although it may be difficult to determine the exact cause. Diagnosing Alzheimer's requires careful medical evaluation, neurological testing and sometimes brain imaging and...

Do you have the right kind of eyewear to protect yourself from serious injury or blindness - or even just daily irritation?

Each year, tens of thousands of people are treated for eye injuries related to the hazards of their jobs, doing chores in the yard or playing sports. Most of these injuries could have been prevented by the right kind of eye protection - including wearing safety glasses, goggles or safety shields.

And for those not exposed to physical dangers, there are coatings...