Anxiety
Anxiety is a normal reaction to stress and can be beneficial in some situations. It can alert us to dangers and help us prepare and pay attention. Anxiety disorders differ from normal feelings of nervousness or anxiousness and involve excessive fear or anxiety. Anxiety disorders are the most common of mental disorders and affect nearly 30 percent of adults at some point in their lives. But anxiety disorders are treatable and a number of effective treatments are available
Treatment helps most people lead normal productive lives. Fear is an emotional response to an immediate threat and is more associated with a fight or flight reaction – either staying to fight or leaving to escape danger. Anxiety disorders can cause people into try to avoid situations that trigger or worsen their symptoms. Job performance, school work and personal relationships can be affected.
Depression
Depression (major depressive disorder) is a common and serious medical illness that negatively affects how you feel, the way you think and how you act. Fortunately, it is also treatable. Depression causes feelings of sadness and/or a loss of interest in activities you once enjoyed. It can lead to a variety of emotional and physical problems and can decrease your ability to function at work and at home.
- Depression symptoms can vary from mild to severe and can include:
- Feeling sad or having a depressed mood
- Loss of interest or pleasure in activities once enjoyed
- Changes in appetite — weight loss or gain unrelated to dieting
- Trouble sleeping or sleeping too much
- Loss of energy or increased fatigue
- Increase in purposeless physical activity (e.g., inability to sit still, pacing, handwringing) or slowed movements or speech (these actions must be severe enough to be observable by others)
- Feeling worthless or guilty
- Difficulty thinking, concentrating or making decisions
Bipolar Disorder
Bipolar disorder is a brain disorder that causes changes in a person’s mood, energy, and ability to function. People with bipolar disorder experience intense emotional states that typically occur during distinct periods of days to weeks, called mood episodes. These mood episodes are categorized as manic/hypomanic (abnormally happy or irritable mood) or depressive (sad mood). People with bipolar disorder generally have periods of neutral mood as well. When treated, people with bipolar disorder can lead full and productive lives.
People without bipolar disorder experience mood fluctuations as well. However, these mood changes typically last hours rather than days. Also, these changes are not usually accompanied by the extreme degree of behavior change or difficulty with daily routines and social interactions that people with bipolar disorder demonstrate during mood episodes. Bipolar disorder can disrupt a person’s relationships with loved ones and cause difficulty in working or going to school. Bipolar disorder is a category that includes three different diagnoses
Schizophrenia
Schizophrenia is a chronic brain disorder that affects less than one percent of the U.S. population. When schizophrenia is active, symptoms can include delusions, hallucinations, disorganized speech, trouble with thinking and lack of motivation. However, with treatment, most symptoms of schizophrenia will greatly improve and the likelihood of a recurrence can be diminished. While there is no cure for schizophrenia, research is leading to innovative and safer treatments. Experts also are unraveling the causes of the disease by studying genetics, conducting behavioral research, and using advanced imaging to look at the brain’s structure and function. These approaches hold the promise of new, and more effective therapies.
The complexity of schizophrenia may help explain why there are misconceptions about the disease. Schizophrenia does not mean split personality or multiple-personality. Most people with schizophrenia are not any more dangerous or violent than people in the general population. While limited mental health resources in the community may lead to homelessness and frequent hospitalizations, it is a misconception that people with schizophrenia end up homeless or living in hospitals. Most people with schizophrenia live with their family, in group homes or on their own.
Research has shown that schizophrenia affects men and women fairly equally but may have an earlier onset in males. Rates are similar around the world.
Posttraumatic Stress Disorder (PTSD)
Posttraumatic Stress Disorder (PTSD) is a psychiatric disorder that can occur in people who have experienced or witnessed a traumatic event such as a natural disaster, a serious accident, a terrorist act, war/combat or rape or who have been threatened with death, sexual violence or serious injury.
PTSD has been known by many names in the past, such as “shell shock” during the years of World War I and “combat fatigue” after World War II, but PTSD does not just happen to combat veterans. PTSD can occur in all people of any ethnicity, nationality or culture, and at any age. PTSD affects approximately 3.5 percent of U.S. adults every year, and an estimated one in 11 people will be diagnosed with PTSD in their lifetime. Women are twice as likely as men to have PTSD. Three ethnic minorities–U.S. Latinos, African Americans, and American Indians–are disproportionately affected and have higher rates of PTSD than non-Latino whites.
Addiction and Substance Use Disorder
Substance use disorder (SUD) is a complex condition in which there is uncontrolled use of a substance despite harmful consequences. People with SUD have an intense focus on using a certain substance(s) such as alcohol, tobacco, or illicit drugs, to the point where the person’s ability to function in day-to-day life becomes impaired. People keep using the substance even when they know it is causing or will cause problems.
The most severe SUDs are sometimes called addictions. People with a substance use disorder may have distorted thinking and behaviors. Changes in the brain’s structure and function are what cause people to have intense cravings, changes in personality, abnormal movements, and other behaviors. Brain imaging studies show changes in the areas of the brain that relate to judgment, decision making, learning, memory, and behavioral control. Repeated substance use can cause changes on how the brain functions. These changes can last long after the immediate effects of the substance wear off, or in other words, after the period of intoxication. Intoxication is the intense pleasure, euphoria, calm, increased perception and sense, and other feelings that are caused by the substance. Intoxication symptoms are different for each substance.