Why am I so skinny?!

Why am I so skinny?

I'm a 19 year old male. Both my parents are fairly normal sized, my dad's somewhat muscular, and not that fatty. I however, am 6'1" and weigh 145. No matter what I do I can't seem to add any muscle mass. I did grow taller in the past year, but I still haven't put on any weight.

Will I bulk up naturally if I keep eating healthy foods? My frame seems big enough to support alot more body mass than it currently is.

Also, should I be doing cardio exercises to help keep off extra body fat?

Thanks.

Clone. I was stuck there for about 30 years. I could not gain and keep weight until I was about 48.

Snack more, with some protein snacks, nuts and fruit. Eat a good breakfast

You also need energy to add muscle, so too much cardio may just hold you back. Lift weights, but keep it down to two sets of any exercise. That will conserve some calories for gain..

You want to stimulate muscle growth, but not overdo the calorie burn, and get enough calories and protein to grow with. Have a good snack with both carbs and protein within 90 minutes of your workouts.

While trying to gain weight, you may have to let your cardio slide a bit. Limit to 30 minutes three times a week. Once you have gained some weight, and strength with the lifting, then up your cardio back to previous levels, and keep eating and snacking..