Experience at play.

MarketWatch staffer Catey Hill reports that, for a number of years, playgrounds for the 50-plus crowd (or any adult who fancies some fun exercise in a public space) have been popping up around the world.

The trend seems to have first arisen in China and Japan, but their benefits in both physical and social health for seniors have convinced developers to begin planning and building them in the U.S. as well. Hill writes:

There may soon be even more playgrounds targeting older people: Michael Cohen, a playground designer and the founder of Must Have Play, says he is in the process of raising money to make this happen. He believes they can do a lot to curb loneliness among retirees (by becoming a meeting place for others in the community), improve agility to prevent falls, and help them stay fit.

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