Depression isnt always easy to detect, and people with depressive conditions can experience different symptoms. It may be expressed through lack of appetite or overeating; insomnia or an unnatural desire to sleep; the abuse of drugs and alcohol; sexual promiscuity; or hostile, aggressive, or risk-taking behavior.
People with Depression tend to experience:
Depression symptoms can vary from mild to severe and can include:
Symptoms must last at least two weeks for a diagnosis of depression.
Also, medical conditions (e.g., thyroid problems, a brain tumor or vitamin deficiency) can mimic symptoms of depression so it is important to rule out general medical causes.
Depression affects an estimated one in 15 adults (6.7%) in any given year. And one in six people (16.6%) will experience depression at some time in their life. Depression can strike at any time, but on average, first appears during the late teens to mid-20s. Women are more likely than men to experience depression. Some studies show that one-third of women will experience a major depressive episode in their lifetime.
Depression Is Different From Sadness or Grief/Bereavement
The death of a loved one, loss of a job or the ending of a relationship are difficult experiences for a person to endure. It is normal for feelings of sadness or grief to develop in response to such situations. Those experiencing loss often might describe themselves as being depressed.
But being sad is not the same as having depression. The grieving process is natural and unique to each individual and shares some of the same features of depression. Both grief and depression may involve intense sadness and withdrawal from usual activities. They are also different in important ways:
Risk Factors for Depression
Depression can affect anyoneeven a person who appears to live in relatively ideal circumstances.
Several factors can play a role in depression:
How Is Depression Treated?
Depression is among the most treatable of mental disorders. Between 80% and 90% of people with depression eventually respond well to treatment. Almost all patients gain some relief from their symptoms.
Before a diagnosis or treatment, a health professional should conduct a thorough diagnostic evaluation, including an interview and possibly a physical examination. In some cases, a blood test might be done to make sure the depression is not due to a medical condition like a thyroid problem. The evaluation is to identify specific symptoms, medical and family history, cultural factors and environmental factors to arrive at a diagnosis and plan a course of action.
Medication: Brain chemistry may contribute to an individuals depression and may factor into their treatment. For this reason, antidepressants might be prescribed to help modify ones brain chemistry. These medications are not sedatives, uppers or tranquilizers. They are not habit-forming. Generally antidepressant medications have no stimulating effect on people not experiencing depression.
Antidepressants may produce some improvement within the first week or two of use. Full benefits may not be seen for two to three months. If a patient feels little or no improvement after several weeks, his or her psychiatrist can alter the dose of the medication or add or substitute another antidepressant. In some situations other psychotropic medications may be helpful. It is important to let your doctor know if a medication does not work or if you experience side effects.
Psychiatrists usually recommend that patients continue to take medication for six or more months after symptoms have improved. Longer-term maintenance treatment may be suggested to decrease the risk of future episodes for certain people at high risk.
Psychotherapy: Psychotherapy, or talk therapy, is sometimes used alone for treatment of mild depression; for moderate to severe depression, psychotherapy is often used in along with antidepressant medications. Cognitive behavioral therapy (CBT) has been found to be effective in treating depression. CBT is a form of therapy focused on the present and problem solving. CBT helps a person to recognize distorted thinking and then change behaviors and thinking.
Psychotherapy may involve only the individual, but it can include others. For example, family or couples therapy can help address issues within these close relationships. Group therapy involves people with similar illnesses.
Depending on the severity of the depression, treatment can take a few weeks or much longer. In many cases, significant improvement can be made in 10 to 15 sessions.
Electroconvulsive Therapy (ECT) is a medical treatment most commonly used for patients with severe major depression or bipolar disorder who have not responded to other treatments. It involves a brief electrical stimulation of the brain while the patient is under anesthesia. A patient typically receives ECT two to three times a week for a total of six to 12 treatments. ECT has been used since the 1940s, and many years of research have led to major improvements. It is usually managed by a team of trained medical professionals including a psychiatrist, an anesthesiologist and a nurse or physician assistant.
Self-help and Coping
There are a number of things people can do to help reduce the symptoms of depression. For many people, regular exercise helps create positive feeling and improve mood. Getting enough quality sleep on a regular basis, eating a healthy diet and avoiding alcohol (a depressant) can also help reduce symptoms of depression.
Depression is a real illness and help is available. With proper diagnosis and treatment, the vast majority of people with depression will overcome it. If you are experiencing symptoms of depression, a first step is to see your family physician or psychiatrist. Talk about your concerns and request a thorough evaluation. This is a start to addressing mental health needs.
American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders (DSM-5), Fifth edition. 2013.
National Institute of Mental Health. (Data from 2013 National Survey on Drug Use and Health.)
Kessler, RC, et al. Lifetime
Prevalence and Age-of-Onset Distributions of DSM-IV
Disorders in the National Comorbidity Survey Replication.
Arch Gen Psychiatry. 2005;62(6):593602.