Biology of thinning hair

[hans]

Got a question about how hair thins due to male pattern baldness. Does the thinning occur on the next cycle of hair growth, meaning the thinning of the hair occurs after the shedding of the current hair? Thus, the hair would have the same diameter in the current cycle but thinner diameter in the next. Or, does thinning occur progressively as the hair is in its anagen phase, meaning the hair gets thinner closer to the root? I'm curious because I see some of my shedded hairs having thin ends to them (with the little white bulbs). Im wondering whether this is a normal occurence even for non-male pattern baldness hair because as the hair enters the telogen phase less nutrients would be delivered to it.

 

[socks]

Im wondering whether this is a normal occurence even for non-male pattern baldness hair because as the hair enters the telogen phase less nutrients would be delivered to it.

Sometimes hairs that are entering telogen "wind down" thereby creating that thinner root.


As far as whether hair can change diameter in anagen from hormonal factors, I've heard some people say yes and some people say no.