Haircafe's video: Why does hair loss get worse as we get older even though testosterone and DHT levels drop

Videos mentioned: https://youtu.be/LsF9MwIM_AM https://youtu.be/X5tVmX8mIF4 https://youtu.be/XMT9WYgWYD8 https://youtu.be/icSupaq9hBA https://youtu.be/P_UngSNEr98 https://youtu.be/IfLvjEjdcnE Sources: 1. Kligman AM. The comparative histopathology of male-pattern baldness and senescent baldness. Clin Dermatol. 1988;6(4):108-118. doi:10.1016/0738-081x(88)90074-0 2. Stárka L, Pospíšilová H, Hill M. Free testosterone and free dihydrotestosterone throughout the life span of men. The Journal of Steroid Biochemistry and Molecular Biology. 2009;116(1-2):118-120. doi:10.1016/j.jsbmb.2009.05.008 3. Whiting DA. How real is senescent alopecia? A histopathologic approach. Clinics in Dermatology. 2011;29(1):49-53. doi:10.1016/j.clindermatol.2010.07.007 4. Robbins C, Mirmirani P, Messenger AG, et al. What women want - quantifying the perception of hair amount: an analysis of hair diameter and density changes with age in caucasian women. Br J Dermatol. 2012;167(2):324-332. doi:10.1111/j.1365-2133.2012.11010.x 5. Karnik P, Shah S, Dvorkin-Wininger Y, Oshtory S, Mirmirani P. Microarray analysis of androgenetic and senescent alopecia: Comparison of gene expression shows two distinct profiles. J Dermatol Sci. 2013;72(2):183-186. doi:10.1016/j.jdermsci.2013.06.017 6. Trueb RM, Rezende HD, Dias MFRG. A comment on the science of hair aging. International Journal of Trichology. 2018;10(6):245. doi:10.4103/ijt.ijt_56_18 7. Fu D, Huang J, Li K, et al. Dihydrotestosterone-induced hair regrowth inhibition by activating androgen receptor in C57BL6 mice simulates androgenetic alopecia. Biomedicine & Pharmacotherapy. 2021;137:111247. doi:10.1016/j.biopha.2021.111247 8. Courtois M, Loussouarn G, Hourseau C, Grollier JF. Ageing and hair cycles. Br J Dermatol. 1995;132(1):86-93. doi:10.1111/j.1365-2133.1995.tb08630.x