I’ve been wearing a tight fitting beanie or toque as we call them here in Canada fairly regularly for about four months now. Often it will be all day, morning till night (so approx 12-14hrs). Quite frankly I just forget its on my head. I’d always had a full head of hair but have noticed some minor thinning at the hairline which I swear was not there some months ago before I started this beanie trend. I know you’ve spoken against hat or headgear wearing as a contributor to hair loss however some still suggest there may be a small correlation between the two.
I don’t believe excess dirt or sebum would contribute to hair loss but what about the notion of your hair/scalp needing oxygen? or vitamin D as produced by exposure to the sun? In regards to tight headgear, what about the idea of a decrease in circulation? Or a form of traction alopecia as the hair gets pushed or pulled in different directions for prolonged periods of time? Your insight would be appreciated.
Traction alopecia is certainly a possibility from wearing a beanie or anything tight on your scalp for extended periods of time. Problems with blood supply and oxygen levels aren’t going to cause hair loss, though they were once thought to be causes many years ago.
Hopefully, any vitamin D you’re not getting from sunlight is covered by your diet. It is my opinion that the hair does not have to get washed and sebum build-up will not impact hair growth, however, not washing your hair could cause your head to eventually stink.