Did you know that because obesity rates have tripled in the past 30 years, American children may have a shorter lifespan than their parents for the first time in our history? But a new government campaign may help to change that. Today, First Lady  Michelle Obama launched Let’s Move! – a program with a goal to end the childhood obesity epidemic within a generation.

The campaign includes getting more healthful foods in schools, bringing grocery stores to communities that don’t have them, and getting children to be more active. Some of the plans, like tax incentives for businesses, will need approval in Congress.

Let’s Move! already has many groups on board – like pediatricians, children’s TV networks, and school lunch suppliers – to help spread the message about how children can eat healthier and move more.

More specific details of the campaign are expected this spring.