Working out is not the only thing that burns calories. Generating heat, like when you sweat, and functions by and for your organs actually burn more calories. that is why when it comes to eating you must take into account how much sleep you are getting during the day. Your body - organs and muscles - burns more energy the less sleep you get. You must also take into account how hard the work you are doing at home, school or work that day is. Your brain for instance burns glucose like a fireplace burns wood when it is really working!
My third book, Pocket Guide to Fitness, is available on http://www.authorhouse.com and http://www.amazon.com. If you look up my name on those Web sites, you will find my other books The Boy in a Wheelchair and Life, Work and Play: Poems and Short Stories. These two books are on my Web site http://www.louizapatsis.com.