Arnold is known for being funny, but there’s one thing he’s taking more seriously these days.

The actor, whose new Tubi show “Underdeveloped” premieres Sept. 8, has made health a priority after suffering a stroke a year and a half ago.

As he recalled in a new interview, he noticed something wasn’t right when he and ex-wife Ashley Groussman were playing a game in the bath with their children.

When I turned around, I felt like a curtain had come down over my right eye, so I couldn’t see,” Arnold said. “Maybe I punched myself in the eye,” he said. “I felt weird. My brain felt strange.”

In the morning, he decided to see a doctor, thinking, “It can’t be that serious” by the time he put his children to bed.

He admitted that he thought, “Oh, you’ve got to be sh–ting me when the doctors told him he had suffered a stroke. Having a heart attack, having a stroke – you know, God forbid, cancer or something like that is just something you don’t want to hear. The thing is, as you get older, you think, “Yeah, I’m going to go see the doctor someday, and it’s going to be really unpleasant.”

In accordance with UCLA stroke protocol, Arnold’s was fortunately only a 1. The actor received a “wake-up call” as a result of the incident.

While homeschooling his children, he had gained weight and wasn’t as active as he had been during COVID, but he finally admitted that he had made excuses about his health in the past, and it was time to be honest with himself.

Additionally, the 64-year-old wants to impart his health lessons to his children. 

“The best thing you can do is set an example and say, ‘This is what I’m doing, and why it’s so important.'”