No legs? No problem.

Zack Ruhl is a 24-year-old from Texas whose workouts are exhausting just to watch. Don't believe it?

Ruhl's website says, "I was born with a birth deformity which led to having both legs amputated at the age of two. Despite having no legs, I have lived my life to the fullest."

As you can see from his videos, he's a workout machine. Maybe he can give this guy some pointers.

So, while you're sitting there trying to eat the remaining Cheetos dust off your chest while you scramble to find the remote without getting off your couch, keep in mind how intense Ruhl is.

Maybe it's time to get up and do a jumping jack or two, don't you think?

Check out some more of Ruhl's work below.