Most firefighters are pretty healthy and fit -- it is a requirement of the job, after all -- but Austin Fire Department's Station 2 firefighter Rip Esselstyn takes fitness to the next level. The professional tri-athlete has developed his own nutrition and fitness program and has written a book about it. The Engine 2 Diet: The Texas Firefighter's 28-Day Save-Your-Life Plan that Lowers Cholesterol and Burns Away the Pounds will be available in stores in February 2009.