James Harrison is 39 years old and has been playing in the NFL since he was signed as an undrafted free agent by the Pittsburgh Steelers way back in 2002. To stay in the league this long, Harrison has to do many things right both on and off the field.

One thing is for sure: Off the field, Harrison works out harder than anyone.

No, really. Harrison is better at working out than you and does so much harder than you. I don’t care if you drink 14 protein shakes and do curls with 80-pound weights while also doing the leg press at 200 pounds simultaneously. Try doing this at 39 after playing in the NFL for 15 years.

By the way, these are all from the past WEEK:

1 1/4 decline bench

A post shared by James Harrison (@jhharrison92) on

Top 3/4 paused band squats

A post shared by James Harrison (@jhharrison92) on

1 1/4 leaning In lateral raises

A post shared by James Harrison (@jhharrison92) on

Step back lunges

A post shared by James Harrison (@jhharrison92) on

Explosion ??? shoot the hips thru. Shoot thru the tackle not to the tackle!

A post shared by James Harrison (@jhharrison92) on

Those aren’t all of the Instagram videos he posted from the last week while working out, either. Outside of videos showing his insane fitness regimen, Harrison also posts pictures showcasing the other things he does to help his body recover from those grueling workouts.

Cupping time

A post shared by James Harrison (@jhharrison92) on

Hot and cold tub time?❄️

A post shared by James Harrison (@jhharrison92) on

Dear mother of whatever you call holy. And Harrison doesn’t just hit the weight room that hard during the offseason. Back in January, the Steelers linebacker was pushing himself that hard after a playoff game and long flight home from Kansas City.

It’s really just a recurring theme. James Harrison works out crazier and much harder than you or anyone else you know.

Don’t try any of this at home, please. You’re not James Harrison.

[James Harrison on Instagram]

About David Lauterbach

David is a writer for The Comeback. He enjoyed two Men's Basketball Final Four trips for Syracuse before graduating in 2016. If The Office or Game of Thrones is on TV, David will be watching.