Not recent, but I spent the majority of my teenage years dealing with awfully frizzy and unmanageable hair because I was shampooing daily (also using an excessive amount). I was under the impression that you need to thoroughly shampoo all oils away every time you shower in order to be “clean.” When I moved to university and no longer had parents around to tell me that I stink, my hygiene standards became more… relaxed, but I was surprised that my hair was a lot healthier!