100 years and very little knowledge. What we do know is that our hormones need to be in balance. When there is an imbalance, crazy things can happen. Weight change, sleep disturbance, fatigue, concentration.
All these thing can wreak havoc on your life. Troubles in your relationships with loved once. Problems with your employer and your work habits. Changes in your personality. Depression. Anxiety. Changes in your immune system. Changes in how you react to and cope with stress in your life.
Sometimes, simply changing your eating habits can balance your hormones. Sometimes, correcting vitamin and mineral deficiencies can balance your hormones. Sometimes, both those fail and you you are still left with an imbalance. Proper testing can help identify hormone imbalance and proper treatment can bring the person back to their old self.
She believed she could so she did.