Clafiry Age Related Thinning

Is age related thinning genetic or just natural part of getting older? Do you lose any hair shafts on the scalp or the existing ones just thin and is this separate from Dupa?

Age-related thinning is not a localized genetic issue like genetic balding; it is not a target’s diminution of hairs within a follicular unit found across all follicular units in a pattern like male patterned balding.  It is a uniform change in the thickness of all terminal hairs on the scalp.  It may be caused by hormonal or other genetic causes, yet unknown. It is most often found in men and women past 50, but I have seen it in 20 and 30-year-old men and women.