Bell, though, confessed that there’s no magic solution – and marriage is a lot trickier than just nailing one “easy” tip.

Speaking from the heart, she advised those following the thread to just “try hard”.

“It's uncomfortable, but worth it,” she revealed. “Also be vulnerable. No one does it right, so forgive and then be vulnerable again.”

Offering up an example of how she and Shepard work at their marriage, Bell revealed that her husband often checks into a nearby hotel when he’s working on a script.

“Dax writes very quickly,” she said. “He can bang out a script in three weeks, which is insane. He will check in to a hotel in the area to write without the kids bugging him all day, and I take them to visit him every two days or so.”

She added: “He’s phenomenally decisive as a director and usually very stressed, so I have to take good care of him while he’s working.”

Kristen Bell reveals secret to her happy marriage with Dax Shepard