In Focus:

Arthritis No Longer Just a Disease of the Old

More younger Americans experience the aches and pains of arthritis than once thought.

Roughly 91 million adults had arthritis in 2015. But the most surprising fact was that nearly one-third of sufferers were aged 18 to 64, a new study found.

Those estimates are 68 percent higher than previously reported, said lead researcher Dr. David Felson, a professor of medicine at Boston University.

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