One of the lessons that I grew up with was to always stay true to yourself and never let what somebody else says distract you from your goals. And so when I hear about negative and false attacks, I really don't invest any energy in them, because I know who I am.

I am desperate for change - now - not in 8 years or 12 years, but right now.

I always encourage people to start in their own personal universe, because sometimes we as parents start thinking about the big picture. How do I change what's happening in my entire school? And how do I do it in my community? And then you get overwhelmed and it's just like, "Forget it, I'll just stay here in my kitchen and wait." But, start small.

I am a sleeper. When you wake up at 4:30 in the morning to do a workout, you're sleepy at 8 in the evening. By 10 o'clock at the latest, I'm in bed.

I am not asking anyone to take the fun out of childhood. As we all know, treats are one of the best parts of being a kid. Instead, the goal here is to empower parents instead of undermining them as they try to make healthier choices for their families.

You can be a good mom and still work out, get your rest, have a career - or not. My mother encouraged me to find that balance.

We have had with Barack Obama some just amazing experiences traveling abroad, being able to introduce our children to the world.... I'm also humbled by the response and the receptiveness, not just here in America, but around the world. There's a part of that warmth and enthusiasm and hope that is surprising and humbling.