Speaker: Donald Yance. Part 2. Depression and anxiety are major public health problems and contribute to cancer, heart disease, obesity, and neurological diseases. They often occur together and include debilitating restlessness, fatigue, anger, concentration problems, tension, irritability, and sleep problems. Constitutional assessment, blood testing and examination of the environment help to build an effective protocol using herbs, essential oils, nutrients, foods, and lifestyle changes, which may allow a patient to reduce or eliminate use of benzodiazepines, SSRIs and other medications.