Regarding the metabolism issue, I was totally with wukkadb until a friend of mine proved me wrong. He was 6'1", 135, and ate like a freakin horse. I witnessed him out-eat me many times, and he'd be eating often throughout the day. He drank, and smoked weed, both of which would assist in weight gain in some form. THC sticks to fat cells (hence it staying in your system longer than most drugs), and we all know about the munchies. I kept telling him to eat more, eat more, and he started taking weight gainer 1850 or some crap like that, and he STILL never gained weight. He lifted, and never did any sort of cardio, as he was a lazy bastard. I still believe that in most cases people are able to gain weight if they really apply themselves and do the right stuff. However, I have found an exception to the rule, and that guy is absolutely hopeless when it comes to gaining weight. I hope, mlsman, you take a break from running and eat eat eat. If you find the uncontrollable urge to run, run up a steep hill or mountain if there's one around you. Take stairs, or something to make it more anaerobic. Or an escalator. That should keep you from burning too many calories. Good luck. I hope you're not stuck in bean-pole form forever.