FILE - In this May 19, 2010 file photo, First lady Michelle Obama sits down to eat with students during a visit to New Hampshire Elementary School with Mexican first lady Margarita Zavala, in Silver Spring, MD. The nation’s first lady turns 50 on Friday and, by her own account, feels more relaxed now that President Barack Obama’s days as a candidate for elected office are over. (AP Photo/Pablo Martinez Monsivais)