Progesterone, another important reproductive hormone, is anti-inflammatory and helps modulate the immune system as a potent suppressor of inflammatory response. Progesterone levels increase during certain phases of menstruation and pregnancy and then permanently drop during menopause – this can correlate to when a woman has more protection against autoimmune disorders.
Androgens such as testosterone, dihydrotestosterone (DHT), androstenedione, and dehydroepiandrosterone (DHEA) protect against autoimmunity and can suppress the immune system like progesterone. They target several parts of the immune system to dampen the immune response.
Other hormonal considerations include the use of hormonal contraception which is a risk factor for the development or worsening of many autoimmune disorders like systemic lupus erythematosus (SLE), Crohn’s disease, Multiple sclerosis (MS), thyroid disease, and many skin conditions. Regardless of the type of hormonal contraception (estrogen-progesterone hybrid or progesterone-only), these contraceptives predispose users to subsequent development of autoimmune diseases.
Cortisol, our stress hormone, also plays a role in autoimmune disorders. Cortisol is overproduced under chronic stress and this stress can trigger or worsen autoimmune diseases. High cortisol levels can also disrupt the production of some protective hormones such as progesterone. People with stress-related disorders are more likely to develop autoimmune disorders.