The Do You Work Out Zone

[EnderD_503]

Originally Posted by Jet

you don't know if she's ectomorph, maybe its metabolism or something medical. I wouldn't speculate with anybody here.

An extremely fast metabolism resulting in difficulty putting on weight is the primary and determining characteristic of a natural ectomorph. They wouldn't be ectomorphs otherwise, just as the defining characteristic of a true endomorph is a naturally extremely slow metabolism resulting in a difficulty in losing weight.

She wrote:

Me and my younger sister are both naturally skinny, and unfortunately [yes, i want to GAIN weight] everything I eat doesn't stink. I don't know where it goes. According to Marine Corps standards I am 4 pounds from being underweight. It is mandatory for us to workout as a unit 3 times a week. That's all I do. It keeps me toned and that's all I need. I don't want to work out on my own unless its some crazy workout that will give me a few pounds. I'm 5'8" and 128lbs.

I didn't assume a medical issue because she stated that she was naturally skinny (unless it's an inheritable disease like Cystic Fibrosis, in which case a similar approach would also help). If there is a serious medical issue, obviously that would be an entirely different story. She didn't give reason to assume, so I didn't.