Styles' heart rate remained relatively stable until he was shown a shirtless photo of Ryan Gosling and his heart rate jumped from 60 to 80 beats per minute, as one's heart would likely do when confronted with the image of the shirtless star.
"Looking very handsome," Styles said as he appraised the photo. "It's a good scene. He's great, he's great." Grimshaw then pointed out that Styles' heart rate was jumping to 80 bpm, with the singer protesting, "No, it's not!"
"I'm more concerned he may have a heart condition," the actor cracked. "It's less about me, more about something more serious."
Photo Credit: Twitter / @FMDOS