In 2010, first lady Michelle Obama started Let's Move!, an initiative to address childhood obesity and help all our kids grow up healthy. Here she participates in musical activities with students in an event at Orr Elementary School in Washington in 2013. Chuck Kennedy/White House
The theme for the fifth year anniversary of Let's Move! is: Celebrate, challenge, champion. The first lady joins in at the Healthy Kids Fair on the South Lawn of the White House in 2009. Samantha Appleton/White House
Across America, cities, towns and counties are supporting healthy afters-school programs and youth sports leagues. Here kids attend a Let's Move! event at Woldenberg Park in New Orleans in 2010.
Samantha Appleton/White House
Through the initiative, millions of kids are attending healthier day care centers, where fruits and vegetables have replaced cookies and juice. Michelle Obama speaks at a Let's Move! Walmart announcement at The Arc in Washington in 2010. Samantha Appleton/White House
Nearly 9 million kids participate in the Let's Move! Active Schools program and get 60 minutes of physical activity a day. Nearly 5 million kids will be attending healthier after-school programs in the next five years. The first lady meets with students in New Hampshire Estates Elementary School in Silver Spring, Maryland, in 2010.
Samantha Appleton/White House
The first lady speaks about Let's Move! at the Visitors Center in Red Rock Canyon, Nevada, in 2010. Samantha Appleton/White House
Childhood obesity rates have finally stopped rising -- and obesity rates are actually falling among our youngest children, according to Let's Move! initiative. The first lady attends the White House Kitchen Garden harvest on the South Lawn in 2010. Samantha Appleton/White House
While Let's Move! has made strides in helping kids become healthy, the statistics are still daunting. Here she attends a partnership event with Chicago Blackhawks and Washington Capitals players on the South Lawn of the White House in 2011. Samantha Appleton/White House
First lady Michelle Obama and Ellen DeGeneres dance during a taping of "The Ellen DeGeneres Show" marking the second anniversary of Let's Move! in Burbank, California, in 2012. Chuck Kennedy/White House
America still spends nearly $200 billion a year on obesity-related health care costs, and that figure will jump to nearly $350 billion a year by 2018, according to Let's Move! campaign. Michelle Obama visits the Fresh Grocer store in Philadelphia in 2010. Lawrence Jackson/White House
The first lady attends a chef's demonstration with third-grade students from Pocantico Hill School and John F. Kennedy Magnet School, before a luncheon at Blue Hill Farm in Pocantico Hills, New York, in 2010. Lawrence Jackson/White House
First lady says she is committed to giving kids the healthy futures they deserve. Here she works with chefs and students in the White House Kitchen Garden on the South Lawn in 2010. Lawrence Jackson/White House