I have been using my treadmill 3-4 times a week for almost 4 weeks and have been told that i look better and my clothes fit me better. I do 35 mins on the treadmill, usually a mix of fast walking and jogging and walking on an incline with a 5min cool down. The calorie meter says i am burning between 160 and180 calories. Im not restricting my food, just eating moderately. I decided i wasn't going to weigh my self because i have an unhealthy relationship with the scales. But today i decided to weigh myself and i have not lost any weight. I told my self muscle gain or hormonal weight fluctuations must be responsibe and jumped on the treadmill. i am 25, female. * Should one expect to gain much muscle in the first month? * Is the calorie counter on a treadmill accurate at all? * Am I burning enough calories? * Would it be better to jog for the entire half hour or is bursts of walking and jogging just as good?