In some cases, seniors embrace their golden years by booking epic, monthslong voyages around the world. Many small- and medium-sized ships cater to the over-60 crowd, but that doesn't mean guests will ...

Some 2.3 million of U.S. adults older than 65 — more than 4% — have a diagnosis of dementia. But even without a diagnosis, a certain amount of cognitive decline is normal as age sets in.