Scientists also think that some illnesses themselves can bring about depression. These include Parkinson's disease, stroke, and hormonal disorders such as thyroid disease. Genetics, too, can play a role. Studies show that some forms of depression run in families. Children of depressed parents may be at a higher risk of getting the disease themselves.
Depression is the most treatable of all mental illnesses.
About 60 to 80 percent of depressed people can be treated successfully. Depending on the case, various kinds of therapies seem to work. Treatments such as psychotherapy and support groups help people deal with major changes in life. One method helps patients recognize and change negative thinking patterns that have led to the depression. Another approach focuses on improving a patient's relationships with people as a way to reduce depression and feelings of despair.