Originally Posted by: chucklivesoninmyheart
Not being very big,I know i'm unhealthy as I have a high number of deep,dark stretchmarks on my thighs,sides and behind my arms(the ones on my lower back have faded...hope the others do too)...

me too... but just on my sides and on my arms... I'm not very big really so I didn't quite know what was causing it... a high percentage of body fat would do it? oh... yeah... my mom has this wierd scale where you tell it your age, whether you are a male or female, and your height, and then it weighs you, and then somehow it has sensors that detect something in your feet to determine your body fat %... and it told me I had 26%... I thought it was wrong because I'm really not that big... 5'8" 165 lbs... and not super fat... but I guess it was right then... I'm really not wanting to be body-builder size, so would cardio be the best way to go? and if so then what form of cardio? I do have access to a treadmill, and a stair climber, and a stationary bike... but I have really low lung capacity/endurance, like when I run on the treadmill I can't go 10 minutes at 6 mph! pathetic! I wish I knew how to work on that too... so when I do cardio, I only end up burning 200 or so calories (according to the treadmill) in the half-hour that I use it because I'm walking most of the time that I'm on it... I try to run... but I get so out of breath that I can't anymore, and I have to start walking...