The premiere of Kirstie Alley’s Big Life, the star’s new reality show, premieres Sunday, March 21 on A&E. The show will follow along on her continued weight loss journey while she raises two teens in Hollywood and promises to be short on the drama and high on hilarity.

We want you to join in the fun by creating your own ‘My Big Life Workout iMix’, since a good playlist can be the motivation to get up and move in your own living room or at the gym.

Win a $30 iTunes Gift Card!

Creating and sharing an iMix playlist is easy and free, and we’ll show you how below. Make a ‘My Big Life Workout iMix’, share a link to it in the comments below and tell us why this mix makes you move. One participant will be eligible to win a $30 iTunes Gift Card, courtesy of A&E Home Entertainment. The winner’s iMix will also be shared via A&E’s Facebook and Twitter. Winner will be selected 3/22/10.

Take one part sports dietitian, mix with one part professional football player, and add a dash of whole food recipes. Pop it in the oven and eventually you get an excellent book called “The All-Pro Diet: Lose Fat, Build Muscle, and Live Like a Champion” (Rodale, 2009).

I sat down with Kansas City Chief’s Tony Gonzalez’s sports dietitian and co-author Mitzi Dulan, RD to get an idea about what the book has to offer people trying to lose weight. Mitzi explains how eating mostly whole plant foods and avoiding heavily processed foods can help you manage a healthy weight.

Listen now as we discuss some of the recipes in the book, like the coconut banana smoothie. YUM!

Is it harder to exercise at a higher altitude or lower altitude? Altitude, believe it or not, makes a huge difference when exercising. At a high altitude (Denver, Colorado) the air is thinner and has lower oxygen pressure. This causes the heart to work harder and beat faster to meet the body’s oxygen needs. Shortness of breath, rapid heart rate, fatigue, nausea, and head aches are common symptoms related to exercising at higher than normal altitudes.

To prevent or reduce these symptoms, gradually increase exercise intensity over the course of several days. If you are preparing for a hike, race, or other exercise related event at a higher than normal altitude, I recommend allowing your body several days to adapt to the new altitude before the event.

For the first time, an iphone app is being used in clinical research to investigate the efficacy of using it to treat depression. A study approved by the Fairleigh Dickinson University’s Institutional Review Board is currently being conducted with the assistance of a network of therapists. These therapists are monitoring daily use of the Live Happy iPhone app in addition to their therapuetic treatment and medication management.

Live Happy is a positive psychology iPhone app based on the happiness research of University of California psychology professor and author of The How of Happiness, Dr. Sonja Lyubomirsky. In my review of this app, I suggested that it would be helpful for there to be an option for push reminders to remind users to use the app each day. A Fairleigh Dickinson University psychology professor, Robert McGrath, concurs that “for it to be most effective it takes dedication and a conscious decision to work at it on a daily basis. This isn’t always easy, especially for people battling depression, so it will be interesting to learn the results and see how effectively Live Happy works in improving symptoms of depression.”

Maybe the Mayans were onto something with the whole end-of-the-world thing in 2012 after all. Pepsi just announced this week that they plan on pulling all of their fully-sweetened drinks from schools in the U.S., and in more than 200 countries total, by 2012.

In its fight against childhood obesity, The World Heart Federation has been negotiating in recent months with soft drink makers to get them to remove sugary beverages from schools.

Coca-Cola, the number one soft drink maker in the world, has also made some positive moves. This month they changed their global sales policy to not sell any of their drinks in primary schools around the world, unless parents or school districts ask. However, this policy does not apply to secondary schools.