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WASHINGTON - OCTOBER 21: U.S. first lady Michelle Obama jump ropes 'Double Dutch' on the South Lawn of the White House during an event promoting exercise and healthy eating for children October 21, 2009 in Washington, DC. The Healthy Kids Fair included events on cooking healthy meals and emphasized children getting a proper amount of outdoor exercise each day. (Photo by Win McNamee/Getty Images)

WASHINGTON - OCTOBER 21:  U.S. first lady Michelle Obama jump ropes 'Double Dutch'  on the South Lawn of the White House during an event promoting exercise and healthy eating for children October 21, 2009 in Washington, DC. The Healthy Kids Fair included events on cooking healthy meals and emphasized children getting a proper amount of outdoor exercise each day.  (Photo by Win McNamee/Getty Images)