Thorough clinical examination and estimation of the conditions progress may reveal clues related to the underlying cause, such as; allergic or infectious seborrhea is more common in young and old dogs, while seborrhea caused by endocrinal disorders (hormones) are more common in middle to older dogs. (dog-health-handbook.com)
-- Gender: Female athletes have a lower recovery rate due to endocrinal differences, such as the lack of testosterone. (fitnesscrest.com)
According to evolutionary, genetic, and endocrinal perspectives, gender differences are modulated by the interaction between intra-uterine stress, genetic equipments, and the availability of the facilitating environment during the newborn period. (cambridge.org)