Kristen Bell says she would '100% not be married' to Dax Shepard if she acted like she 'wanted to' on her period

• Kristen Bell said she self-regulates her emotions while she's on her period.
• She added that she would "100% not be married" to Dax Shepard if she acted like she "wanted to."
• Bell also acknowledged that PMS could be "debilitating" for many menstruating people.

Kristen Bell said she believed she wouldn't still be married to her husband of eight years, Dax Shepard, if she acted the way she "wanted to" on her period.

During Monday's episode of the "Armchair Expert" podcast, hosted by Shepard and Monica Padman, Bell opened up about "self-regulating" her emotions while on her period, particularly when she experiences premenstrual syndrome (PMS).

PMS, which typically starts a week or two before the menstruating person's period begins, can commonly cause anxiety, irritability, and physical discomforts like sore breasts and abdominal cramping, though the severity of symptoms can vary widely.

"The reason that I don't go bananas on my period is because I have been brought up with socialization that has told me, 'You will feel bananas a couple of days before your period,'" Bell told Shepard and Padman. "'Don't scream at everyone. Even though that is what you want to do, you can't do that. What is happening to you is in your brain chemistry and your hormones.'"

Bell added that some people have "pretty debilitating PMS" and others could "lose control" of their emotions. She said it was probably best for her marriage if she, personally, didn't let her emotions overpower her.

"We are also expected to self-regulate, and if I acted like I 'wanted to' every time on my period, we would a 100% not be married," Bell said of her relationship with Shepard.

Shepard, in turn, said he'd observed that "the level of PMS varies so greatly," based on his experience in previous relationships.

Bell and Shepard are never shy when it comes to getting candid about the challenges in their marriage.

They have previously opened up about going to therapy, having had fights so intense that they "blacked out," and Shepard's recent drug relapse after years of sobriety. The couple met in 2007, got married six years later, and are parents to two young daughters.

Most recently, Bell said on "The View" earlier this month that the two took an unusual approach to their kids' hygiene - they wait for their daughters to "stink" before bathing them, following in the footsteps of other celebrity parents, like Mila Kunis and Ashton Kutcher, who also said they didn't bathe their children every day.

"I'm a big fan of waiting for the stink," Bell told "The View" hosts. "Once you catch a whiff, that's biology's way of letting you know you need to clean it up.

"There's a red flag. Honestly, it's just bacteria; once you get bacteria, you gotta be like: 'Get in the tub or the shower.'"