A CLOSER LOOK AT GENERALIZED ANXIETY DISORDER...
According to National Institute of Mental Health website:
"GAD is diagnosed when a person worries excessively about a variety of everyday problems for at least 6 months.13 People with GAD can’t seem to get rid of their concerns, even though they usually realize that their anxiety is more intense than the situation warrants. They can’t relax, startle easily, and have difficulty concentrating. Often they have trouble falling asleep or staying asleep. Physical symptoms that often accompany the anxiety include fatigue, headaches, muscle tension, muscle aches, difficulty swallowing, trembling, twitching, irritability, sweating, nausea, lightheadedness, having to go to the bathroom frequently, feeling out of breath, and hot flashes."
Source NIMH website:http://www.nimh.nih.gov/health/publications/anxiety-disorders/generalized-anxiety-disorder-gad.shtml
To find out more about GAD click here
A CLOSER LOOK AT SCHIZOPHRENIA...
Schizophrenia afflicts 1 percent of the population worldwide. The first symptoms usually occur between the ages of 18 and 30. A person with schizophrenia experiences behavioral and psychological symptoms that fall into three catgories:
These symptoms go through periods of remission and recurrence. Early treatment and continued treatment have proven very effective in managing the course of the illness. Treatments include antipsychotic medications, psychotherapy, and cognitive behavioral interventions. Many people with schizophrenia work and have families and lead fulfilling lives despite these obstacles.
A CLOSER LOOK AT BIPOLAR DISORDER... Bipolar disorder or manic-depression affects roughly 1 percent of the adult population.
Manic-depression is a disorder of the brain resulting in episodes of mania and depression. Symptoms of mania may include an elated, happy mood or an irritable, angry or unpleasant mood. Symptoms of depression may include apathetic mood or feeling of hopelessness.
These episodes can last for days to months at a time. Between episodes, most people with bipolar illness have periods of relatively normal moods and activity, and they may go years or decades without a major episode with little or no sign of illness.
A CLOSER LOOK AT DEPRESSION...
Clinical depression affects about 16% of the U.S. population. This mental illness is defined as a state of intense sadness or dispair that has advanced to the point of being disruptive to an individual's social functioning and/or activities of daily living.