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I am turning 19yr nw and i have an athlete body weighting only 60kg my height is 5.8feet and nw for gaining muscle i am joining gym. my diet is almost good i eat 8 chapatis (Indian bread) per day and some rice, and also drink almost 2 normal glass of milk. i have a fear that by joining gym i will be losing more of my weight and become more thin. And here there is a rule that if u join gym one day u have to do cardio and next day weight lifting.Many people told me that cardio results in losing weight so is this true an if yes what should i do should i follw this rule or should lift every day skiping cardio – . I want some suggestion from all the experts over here that should i join gym or not..?