A deficient production of melatonin can result in anxiety and mood disorders, lowered basal body temperature, insomnia, elevated estrogen/progesterone ratio, and immune suppression associated with cancer. Excess melatonin is associated with seasonal affective disorder (SAD), lowered estrogen/progesterone ratio, low thyroid and adrenal function, and hypotension. Melatonin Associated Disorders Because melatonin … Continue reading Pineal Disorders: Melatonin Deficiency and Excess