I think that mentoring is such a critical part of the role I can play in my position. I see how little bits of exposure and big bits of exposure really change my girls significantly, and I want that for more girls around the country and the world.

Since we started the Let's Move! initiative, I've been looking for as many ways as possible to help families and kids lead healthier lives. And I've come to realize that if we were going to take just one step to make ourselves and our families healthier, probably the single best thing we could do is to simply drink more water. It's as simple as that. Drink more water.

One reason we planted the White House vegetable garden was to set an example about what food can mean, but to also begin a broader conversation about how we're feeding our kids, what they know about the food that they eat, how they're taking care of themselves.

But we need a medical community that's trained and knowledgeable and working on advancement.

Good health is multifaceted - it's physical, it's internal, it's my diet, and my emotional state. It's all tied in together.

Hope is necessary. It's a necessary concept. And Barack Obama didn't just talk about hope because he thought it was just a nice slogan to get votes.

There is nothing more important to this nation's future than investing in our young people.