Hypothalamic amenorrhea is the loss or the absence of periods of menstrual cycles that are the consequence of deficits within the hypothalamus
More toxic exposure = more depletion.[2] Alcohol
Yilmaz M, Kantarjian H, Muftuoglu M, Kadia TM, Konopleva M, Borthakur G, DiNardo CD, Pemmaraju N, Short NJ, Alvarado Y, Montalban Bravo G, Jurisprudencia C, Pike AM, Ohanian M, Jabbour E, Garcia-Manero G, Ruvolo V, Ravandi F, Andreeff M , Daver NG
MC1R is primarily expressed in melanocytes and is thought to participate in processes related to the epidermal layer and hair pigmentation through the regulation of melanin synthesis