Depression, Mental Health, Sadness, Emptiness, Hopelessness, Loss of Interest, Fatigue, Appetite Changes, Sleep Patterns, Difficulty Concentrating, Genetics, Brain Chemistry, Environmental Factors (Stress/Trauma), Medical Conditions (Thyroid Disease/Cancer), Antidepressants, Psychotherapy (Talk Therapy), Lifestyle Changes (Exercise/Diet), Alternative Therapies (Yoga), Family Members/Friends Support,