Having ADHD caused him to have low confidence levels growing up, Pennington said, but as he learned to cope with the disorder, it changed the way he functioned.
"I think just me sitting here, having an interview... I know my parents would never have thought that would've happened," he said, with a laugh.
While he admitted his ADHD presents a new challenge for when he will be talking in front of a live studio audience on "The Revolution," Pennington said he has managed to turn that energy into a blossoming brand that extends beyond the small screen and into his own lines of lumber and fabric, as well as a home décor collection at Sears and two design books.
Pennington's advice for others suffering from ADHD is to not "get in the way of yourself."
"There's so many obstacles that we face every day in our life and the one that seems to get in the way the most, is just ourselves," he said. "The fear, the, I mean, it's funny, you know, our insecurities, the whether or not you want to take a risk -- I am a firm believer that, take a chance."
But for the man who can't turn his mind off, Pennington also plays guitar and doesn't show any signs of slowing down.
"Occasionally I'll just sit down and be like wow I'm taking a break but I'm kind of good on the go I mean that's sort of me you know," Pennington said. "I'll write a song. I'll write a song about nothing, like this nothing, is nice sometimes."