This isn't applicable to people that are exercising just for health, rather than to also lose weight.
For naturally skinny "dicks" like me, I find I get the best workout and feel the healthiest when I do a mix of the tread mill with intermittent breaks of lifting and power push-ups when my legs can't take it anymore.
For naturally skinny "dicks" like me, I find I get the best workout and feel the healthiest when I do a mix of the tread mill with intermittent breaks of lifting and power push-ups when my legs can't take it anymore.