Occasionally I have tried doing this, but it never ends well for me. My hair doesn’t get crazy greasy if I don’t wash it every day, but I do develop a lot of dandruff if I skip washing days too often. I have the opposite pattern of the person in the video. Reducing the number of shampoo sessions I get without fail causes me to develop dandruff.

Also, this past year I have picked up running. If I didn’t wash my hair after my runs, I’d probably smell disgusting in no time.

I don’t think there’s a one size fits all solution for everyone in these sorts of things.

Racoons are called some variation of “wash bears” in many languages because they like to dip their food in water before eating it!