This problem involves memory and concentration. It's a feeling that you're living in a haze. It's not the same as dementia or Alzheimer's disease. But it can make it hard to do the things you need to do.

This is a condition that involves your mind and your body. With it, you have physical symptoms that a doctor can't explain with a medical exam. You may have blindness, paralysis or some other problem that has no obvious physical cause. But these symptoms are real, and you can't control them.

This is a serious disturbance in your mental state. With it, you don't think clearly. It can happen suddenly, leaving you disoriented and confused. You may not be able to understand what's happening around you.

This brain problem affects things like thinking, memory and language. It makes it hard for you to do simple daily tasks. It may also make it hard for you to control your emotions.

This is a name we give to disorders of the mind. Depression, anorexia, bipolar disorder and schizophrenia are examples of some well-known mental illnesses, but there are a wide range of others. These disorders can affect your mood, and the way you think and act. Some are very disruptive and hard to treat. But most can be managed with proper care.

There are many forms of mental illness. They affect all types of people and all ages. We don't fully understand what causes them. But we have learned to recognize them, even in the early stages. That's because mental illness often triggers dramatic changes. Here are the signs that help is needed.

This is the act of hurting yourself on purpose. It's a sign of emotional distress. You feel urges that you can't ignore. You may cut or burn yourself. You may pull your hair or pick at wounds so they don't heal. Self-harm may lead to shame and guilt. These feelings can make you want to hurt yourself again and again.