I just wanted to thank you for all your informative posts. I'm 54 years old and just recently started to work out with Cathe again (did about 10 years ago for a couple of years but then stopped and became a slug), STS series, using CC for Cardio, and this time I'm also being very cognizant about my nutrition. It's only been a few weeks, but I'm feeling terrific...more energy, more positive attitude, feeling happier. I appreciate all I'm learning from you and others on this forum. They say it's never too late to change your life 
thanks again!
thanks again!