Anonymous wrote:I need to lose 30 lbs. Can I achieve that by doing cardio (treadmill and rowing machine) only? Or do I have to use weight machines?
Weight loss is 100% what you eat. I find it easier to lose when I am doing cardio because I can eat more, but most people wildly over estimate their calorie burn from exercise.
Weights are great because you can move so much better when you are strong. It's fun to be strong.
I do t use machines because I find compound barbell movements more efficient. If you want to lift, Google StrongLifts, Nee Rules of Lifting or Starting Strength.