Hormones are not just about sex and reproduction. Your glands produce these chemicals to regulate several body processes, including heart rate, sleep cycle, growth and development, body temperature, appetite, metabolism and stress level.
The balance of hormones your body produces changes at certain stages of life. A hormone imbalance can also be caused by external factors like certain medications or prolonged periods of excessive stress. Some diseases also affect hormone balance.
During pregnancy, breastfeeding, and menopause you are likely to experience a hormonal imbalance. Eating disorders will also disrupt your normal hormone balance, and injury or trauma might trigger an imbalance or change in your endocrine functioning.