There's one thing that Blake Shelton does daily that helps keep his marriage with Gwen Stefani strong. "The thing about Blake is that you'll never get through a day without laughing," Stefani said on " The Jennifer Hudson Show ." Laughter can help reduce stress, form bonds with others, and even improve health.

When it comes to Blake Shelton, he's got at least one trait that keeps Gwen Stefani swooning almost 10 years after they first started dating. The "Don't Speak" songstress sat down with host Jennifer Hudson for her daytime talk show,