Until recently, burnout was referred to as a stress condition. The World Health Organization (WHO) did, however, recently alter its definition. Now burnout is considered a chronic form of stress that can affect any person working in stressful jobs. Burnout results when your body's natural defense mechanisms are triggered repeatedly over an extended period of time. Healthcare providers are at risk for developing burnout because of the nature of their jobs. They work with patients who are often very sick or injured, which can be emotionally draining. Additionally, physicians may also deal with financial issues, such as high medical bills or lack thereof. These factors can lead to frustration, anxiety, and depression for healthcare providers. There are several terms used to describe individuals or groups at risk for or suffering from burnout.