It isn't easy managing a successful acting career, a marriage to Justin Timberlake and an adorable 3-year-old son, but Jessica Biel makes it work. That's why she's teamed up with American Express as a spokesperson for its Live Life campaign, which celebrates that people are living blended lives, intertwining personal passions with their careers.

"I am constantly trying to blend my personal and my work together on a daily basis, because it is my life," she told ET's Lauren Zima at the campaign's shared experience event in New York on Monday. "I just love this idea of inspiring people and celebrating the moments when anyone can say, 'You know what? I'm taking a break. This time is for me.'"

"Honestly, it will get you ready to go back to the responsibilities of your life," Biel added.

With her Golden-Globe nominated series, The Sinner, picked up for a second season last month, Biel is ready to get back to business, and balancing her busy life.

As for how she rejuvenates herself, Biel said exercise -- mental and physical -- is key. "Even if it's 30 minutes by myself, just doing some exercise, some mental exercise would be a great moment for me, or reading a book," she revealed. "I read a lot of scripts and it's amazing, but I miss my paperback."

"I miss the cozy corner of my room with my blanket and my tea," she shared. "That would be a good moment, too."

For more information, visit AmericanExpress.com/LiveLife.