Genetics Made Me Thin

I have been thin all of my life. My mother and father are both relatively small people and while my sister is slender also, it looks much better on a girl than a guy. I’ve always loved to play sports, but because I was so small, I rarely got any playing time. What I’m hoping to do with my new gym membership is to develop a training program that will help me build muscle and bulk up some. I know I need to eat more, but I just never seem to be hungry. Hopefully working out more will help me out with that issue.