Experts estimate nearly 27 million people in the United States are afflicted with osteoarthritis, the most common type of arthritis, with 60% of them being women. Two-thirds of the people over age 65 have osteoarthritis and those numbers are expected to climb as baby boomers age. There is currently no cure, so the emphasis is on effective treatment. It can be a major cause of disability and lead to a great amount of pain and stiffness in the joints. Yet good news comes out of The University of Nottingham. By a fluke of fate, researchers discovered a simple illusion can drastically reduce — and sometimes temporarily eliminate arthritic pain in the hand.