Doctors may need a teenager to take depression-related tests if he is exhibiting symptoms of depression, such as constant fatigue, insomnia, unexplained weight loss and suicidal thoughts, explains the Mayo Clinic. Doctor... More »

There are a multitude of free tests available online to determine the likelihood that you are suffering from depression. However, regardless of the results, if you feel that you are suffering from depression, it is impor... More »

An online assessment for depression is available on the Depression website. However, taking an online test for depression is not a substitute for seeking a doctors diagnosis and care, states More »

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Common symptoms of depression include irritability, feelings of guilt, fatigue, a loss of interest in hobbies, and feelings of hopelessness, according to the National Institute of Mental Health. Insomnia, consistent feel... More »