Put This Oil on Your Scalp Before Bed — Hair Grows While You Sleep After 60 | Dr. Li

This video explains why hair thinning accelerates after sixty and reveals a simple nighttime strategy that works with your body's natural biology. You'll learn what actually happens to hair follicles as we age and why most products fail to address the root cause. Dr. Li walks through the science behind the hair growth cycle, including the roles of anagen, catagen, and telogen phases, the impact of reduced blood flow to the dermal papilla, and hormonal shifts like estrogen drop and DHT activity. He also cites research from the Proceedings of the National Academy of Sciences showing that follicle activity peaks between 10 p.m. and 2 a.m., making nighttime the ideal window for treatment.