Stress is a feeling of emotional or physical tension that can come from any event or thought that makes you feel frustrated, angry, or nervous. It is a natural human response that prompts us to address challenges and threats in our lives. Stress affects both the mind and the body, and everyone experiences stress to some degree. A little bit of stress is good and can help us perform daily activities, but too much stress can cause physical and mental health problems. Chronic stress can worsen pre-existing health problems and may increase our use of alcohol, tobacco, and other substances. Stress can make it hard for us to relax and can come with a range of emotions, including anxiety and irritability. When stressed, we may find it difficult to concentrate, experience headaches or other body pains, an upset stomach, or trouble sleeping. Chronic stress can put us at risk for health problems, including high blood pressure, heart disease, diabetes, obesity, depression or anxiety, skin problems, menstrual problems, and more. Stress is not normally considered a mental health problem, but it is connected to our mental health in several ways. Stress can cause mental health problems and can make existing problems worse.