Just had this cross my FB page. http://www.burnthefatblog.com/archives/2010/10/are_you_an_active_couch_potato.php
Bottom line is long,uninterrupted stretches of sitting does not do a body good even if one exercises regularly. I have to admit I'm luckier than most, my pay-the-rent work, although mostly tied to a computer screen allows me to sit, stand, dance, bounce, or whatever else I can think of. However, when I start to sew, I can sit for hours and not realize where the time has gone. One tip is to find an timer (I've found them at my version of the dollar store). I'll set it for 15 minutes as a reminder that I need to get up and stretch. 
 
 
Years ago, I remember Sylvester Stallone talking about his nutrition and how he treated his body like a racehorse. The only thing I remember now is that the was eating oats, but the gist, I think, was that we took better care of racehorses than our own bodies. My guess is that for the majority of people, this might still be true, we buy expensive petfoods to make sure our puppy or kitty stays healthy and take them to the vet's regularly. The question is, why do we treat our cars, our possessions, our pets, better than we treat our own bodies. Yes, we are smart enough to create drugs to treat the symptoms of our excesses, but it seems to me, it would be much smarter to fix the problem and treat ourselves better. It doesn't mean deprivation...I just ate some brownies, but it does mean being smarter about how we eat. The advice being given today, is actually the same advice from years ago...eat your fruits & veggies and exercise a little. Science has determined why that cod liver oil was so good...at least today we can eat tasty salmon instead. I tend to follow an 80/20 rule...most days I eat lots of fruits & veggies, plus lean proteins like eggwhites and fish. However, when I go to my weekly quilt group meeting, I indulge in the treats. This is the basic idea behind all the diets now touting how you can lose weight and still eat your favorite foods. Create your own plan or buy someone's f you need ideas on how to implement an eating style that you can live with for the rest of your life.
 
 
I find traveling the most difficult times to maintain a decent level of physical activity & eat properly. Just spent 15 days in Hawaii in California...did manage to get in 4 sessions at my favorite yoga studio in Manoa, however, Hawaii is all about the food. Zippy's, The Hungry Lion, family gatherings. I carry a pedometer so that I can at least try to get some walking in to balance out eating all the yummy food. California was even harder as lots of time spent in the car. Went to Napa and it wasn't the wine tasting, but the olive oil & tapenade tasting that was too good to pass up. One of my favorite things is to go to Costo and try all the samples, yes some aren't the healthiest, but I get my taste fix and won't buy the huge package...think small, controlled, portions. Went on the Jelly Belly factory tour...trays and trays of jelly beans...sugar rush just from the aroma.