If you like the feeling of sinking into your bed as opposed to resting on top of it, then a memory-foam mattress made entirely or mostly of polyurethane foam (aka polyfoam) may suit you best.

Brain-training games remain unproven, but research shows what sorts of activities do benefit cognitive functioning.

Some 2.3 million of U.S. adults over 65—more than 4%—have a diagnosis of dementia. But even without a diagnosis, a certain ...