Hair Growth Cycle. Hair on the scalp grows about .3 to .4 mm/day or about 6 inches per year. Unlike other mammals, human hair growth and shedding is random and not seasonal or cyclical. At any ...
Interesting post regarding hair loss and beards, I do notice many men with thick beards who are bald, but not them all, including myself. I have not shaved since Christmas Day 2015 although I did trim it down a little about 2 months ago. I have still got a good amount of hair on top for a now 70 year old (young at heart man).