Thyroid function is vital to metabolism, temperature regulation, psychological health, cardiovascular health and fertility outcomes. Chronic immune activation, genetic predisposition and inflammation may cause a biological cascade leading thyroiditis and the development of thyroid nodules. Additional factors such as biotoxin exposure, hormone metabolism, gut microbiome, and diet are necessary to address when treating your thyroid dysfunction. Bioidentical hormone therapy, T3 hormone therapy, botanical medicine, and lifestyle modification are pertinent to consider during functional medical treatment. If you have difficulty losing weight, insomnia, suffer from anxiety and or depression, experience dry skin, and/or feel hot/cold? You may need to check your thyroid.