To bathe or not to bathe (often). That is the question

The phenomenon of regularly showering or taking a bath daily is fairly modern, according to polling.

(CNN)My first memories of bathing were of my mom dragging me into the bathtub kicking and screaming. Those days are long gone, and I'm now a once-a-day-shower kind of guy.

Perhaps that's why, as of a few months ago, I got this yuck look on my face upon hearing about people who don't shower or bathe every day. But what if I and the roughly two-thirds of Americans who shower daily have it wrong? What if bathing every day is not the best way to be hygienic?
That's the subject of the latest episode of my podcast "Margins of Error," where we go beyond the news cycle and tackle the subjects that we face every day.
    Let's face it: We live in a society where passing judgment on others is a favorite pastime. That's especially true when it comes to how people look and present themselves.

      We judge others on their bathing

      Just ask Dr. James Hamblin, who made waves a few years ago when he decided to stop showering cold turkey. After his experiment, he wrote a book called "Clean: The New Science of Skin and the Beauty of Doing Less."
      "Hygiene practices are one of the last areas where people will openly call one another gross or disgusting," Hamblin told me. "We've made a lot of progress in a lot of other areas, but that is still just an area of just unrepentant judgment, and we need to examine that."
        No one is immune to this judgment. Mila Kunis and Ashton Kutcher generated a ton of headlines last summer when they admitted they took a laid-back approach to their kids' bathing habits.
        Humans have a complicated history with bathing dating back to ancient Rome, one author  says.
        But polling tells us just how modern the phenomenon of regularly showering or taking a bath is. According to Gallup, in 1950, fewer than 30% of Americans took a shower or bath at least once a day in the winter.
        Yet we seemed to survive just fine. So, I decided to dig into the issue a little more. Why are we bathing so much now, and do we need to? Where do we draw the line between what's necessary for our hygiene ... and what's just marketing?