Causes and symptoms of depression

Some types of depression can run in families, indicating that it may be inherited. Experts believe that this is the case with bipolar disorder. However, not everybody with the genetic makeup that causes vulnerability to bipolar disorder will have the illness. Whether inherited or not, researchers have found that depression is associated with changes in brain structures or brain function.Also, people who have low self-esteem, who are overly pessimistic or who are easily overwhelmed by stress, are prone to depression. Whether this represents a psychological predisposition or an early form of the illness is not clear.

Researchers have found that physical changes in the body can be accompanied by mental changes as well. Medical illnesses such as stroke, a heart attack, cancer, Parkinson's disease, and hormonal disorders can cause depressive illness, making the sick person apathetic and unwilling to care for his or her physical needs, thus prolonging the recovery period. Also, a serious loss, difficult relationship, financial problem, or any stressful (unwelcome or even desired) change in life patterns can trigger a depressive episode. Very often, a combination of genetic, psychological, and environmental factors is involved in the onset of a depressive disorder.

Common symptoms of depression

· Persistent sad, anxious, or "empty" mood

· Feelings of hopelessness, pessimism

· Feelings of guilt, worthlessness, helplessness

· Loss of interest or pleasure in hobbies and activities that were once enjoyed, including sex

· Decreased energy, fatigue, being "slowed down"

· Difficulty concentrating, remembering, making decisions

· Insomnia, early-morning awakening, or oversleeping

· Appetite and/or weight loss or overeating and weight gain

· Thoughts of death or suicide; suicide attempts

· Restlessness, irritability

· Persistent physical symptoms that do not respond to treatment, such as headaches, digestive disorders, and chronic pain

Source: National Institute of Mental Health

Information on this site is provided for informational purposes and is not meant to substitute for the advice provided by your own physician or other medical professional. You should not use the information contained herein for diagnosing or treating a health problem or disease, or prescribing any medication. You should read carefully all product packaging. If you have or suspect that you have a medical problem, promptly contact your health care provider. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease.