Pittsburgh Steelers’ outside linebacker James Harrison posted a video on his Instagram page, highlighting the conditions he is practicing in. Training in Scottsdale Arizona, Harrison’s post shows a field temperature gauge registering over 189 degrees. He notes the temperature six feet above the field is 136.

That alone is enough to make anyone reading this sweat. Harrison ups the ante by donning his usual workout clothes, a hoodie and sweatpants, running a 40 yard dash. He turns to the camera and takes off his sweatshirt, revealing a 12 pound weight vest underneath.

The University of Arkansas produced a study regarding the temperature of synthetic fields. It reported “because of these high temperatures, an artificial field will remain largely unusable during warm days. Additionally, practicing on an artificial field could increase the incidence of heat stroke, muscle cramping, and overall athlete fatigue.”

Field temp 189.5, temp 6ft above the field 136…… Grooving on Sunday💯💯💯 Arizona heat A video posted by James Harrison (@jhharrison92) on Jun 28, 2015 at 2:18pm PDT

James Harrison is not human.