Don't like sprinting? Blame it on your muscles. Deep within your skeletal muscles you have different twitch fibers. Although this makes it sound like your muscles are textured like different knitting stitches, in truth the muscle twitch fibers ultimately look the same, but they work differently. Slow twitch fibers (aka type I fibers) are the part of the muscle made for endurance activities like Read more

It's an age-old question: how come my pants feel looser but I weigh more now than before I started exercising? FitSugar reader livingthin turns to the experts for an answer and posted it in our 10 Pounds DOWN! community group. Q: "I know everyone is always looking at the scale, but in my case I am slimmer than ever but the scale shows I am almost the same weight as I was on my son's first Read more