Declaring herself "first mom," Michelle Obama got right to work on the defining issues of her children's

generation: obesity and improving the health of America's kids.

Her Let's Move campaign put obesity in the headlines in part because Americans under 25 are the first

generation expected to live shorter lives than their parents because of diet-related illnesses. But Obama,

47, urged people to get up and do something. She convinced her husband to establish America's first

Childhood Obesity Task Force. She planted a teaching garden at the White House and reminded

Americans that to know their farmers is to know their food. She enlisted the country's leading chefs to

work with local schools and start cooking; at last count there were more than 1,000 such partnerships.

She's encouraging mayors around the country to embrace obesity-prevention programs. And perhaps

most incredibly, she's had frank and challenging dialogues with some of America's largest corporations

and persuaded them to change their business practices for the sake of the children.

While she knows none of these changes are easy, she's stood firm in her conviction that if we all just eat

better and move more, then we can fight obesity. For her inspirational work, I salute First Lady Michelle

Obama — a true revolutionary.