Depression is a biological illness which may include sadness without any apparent cause, lack of interest, change in appetite and fatigue. Because depression is an illness, a person can't just "snap out of it."
An assistant who is certified to provide general nursing care under the direction of a registered nurse or therapist. They help with every aspect of nursing care as well as provide daily personal care to patients such as bathing, eating, and exercising in a variety of settings. Also referred to as a nurse assistant.