Why does being stressed out cause irregular periods?
When we are under stress, regardless of the source (danger, personal relationships, work, environment) our adrenal glands are designed to secrete the hormone cortisol (see our articles on adrenal fatigue). Cortisol has a direct impact on the sex hormones estrogen, progesterone, and DHEA. Eating disorders, dieting, drug use, and reliance on stimulants like caffeine and alcohol are also interpreted by the body as kinds of stress. Poor nutrition seems to physically change the proteins in the brain so they can no longer send the proper signals for normal ovulation.