Dr epstein. you are so pessimistic!
As our body ages, we see changes in our hair character. The hair of a newborn is very soft and very fine, the child's hair becomes thicker and as we age, we might peak with our hair shaft thick-ness in childnood or early adolescence. As we move into adulthood and then older ages, the hair again changes. All of these changes are genetically programmed. Unfortunately, we do not know much about the programming, but one day we will growth, balding, and hair thickness.