I'm new to weight lifting. I have lost 80 pounds already mostly by running and watching what/how much I eat and am going for another 30 pounds, but have plateaued. I've read through some articles on this site for some tips. One being to gain muscle to help burn fat for longer periods of time. Since I'm trying to lose fat that means I must have a caloric deficit. From my understanding about gaining muscle is, please correct me if I am wrong, to gain muscle one must have a caloric surplus. So my question is how do I gain muscle, but be in a caloric deficit at the same time?