When people talk about depression, they usually mean a person who is feeling down and lethargic, and who has generally lost interest in life. Most people don’t realize that there are many different types of depression a person can be suffering from, with each type often showing different symptoms.

While this isn’t an exhaustive list, here is a quick overview of the most common forms of depression.

Mild/Minor Depression is the least severe form of depression. Usually the symptoms aren’t so severe that they have a major impact in the life of the sufferer, although the depression can still cause distress and disruption. Many people who are suffering from mild depression never seek treatment - they don’t believe the symptoms are severe enough.

Dysthymic Disorder is a long-term form of mild depression (lasting two or more years). Like mild depression, most sufferers never seek help as they don’t believe their symptoms are severe enough. Also like mild depression, the symptoms of dysthymic depression don’t usually have a huge impact on the sufferers day-to-day life. But when the long-term results from the depression are considered, the impact can be huge. People who suffer from dysthymic depression often can’t remember a time when they weren’t depressed.

Moderate Depression fits somewhere between mild depression and major depression. The symptoms of moderate depression are more severe and numerous than mild depression, and they begin to have an impact on the work, home and social life of the sufferer. While mild depression and dysthymic depression can go unnoticed by others, the symptoms of moderate depression are usually noticeable. If left untreated, people suffering from moderate depression can slip into major depression.

Major Depression (also known as clinical or unipolar depression) is what most people think of when they think of depression - the individual seems to have totally given up on life, and has a large number of obvious symptoms. It is unlikely that someone suffering from major depression could function normally in a work, social or home setting - their symptoms are too pronounced. Suicide can be a huge risk with major depression, and professional help needs to be sought to treat the depression.

Bipolar Depression (BPD) is sometimes known as manic-depression, and is characterized by the sufferer having large mood swings from very upbeat and energetic to extreme lows. Both periods normally last for several weeks at a time. Bipolar depression is usually categorized into a number of sub-categories. While there is no firm consensus on how many sub-categories there are, the four most common are Bipolar I Disorder, Bipolar I Disorder, Cyclothymic Disorder and Bipolar NOS.

People with bipolar I disorder have the most extreme mood swings. Their low moods can be classified as major depression, while in their positive moods they can engage in crazy, outrageous and even dangerous activities. During this ‘mania’ state they may even suffer from paranoia or hallucinations.

People with bipolar II disorder have much less extreme mania periods. Indeed, many bipolar II sufferers go untreated because people mistake their ‘mania’ phase for simply getting over their depression. People with bipolar II don’t suffer from paranoia or hallucinations.

Cyclothymic disorder is a milder but much more long-term version of bipolar disorder (usually lasting for two or more years). Like bipolar II the mania phases are relatively minor, but in addition their depressive phases aren’t so severe that they classify as major depression. If left untreated, cyclothymic depression can develop into bipolar II depression.

Finally, Bipolar NOS (Not Otherwise Specified) is a catch-all category for people who have some of the symptoms of bipolar, but those symptoms don’t allow the person to be neatly categorized in one of the three other categories. For example, the sufferer may have fast cycling between the manic and depressive states, or manic states without depressive states.

Premenstrual Dysphoric Disorder (PMDD) is a severe form of Premenstrual Syndrome (PMS) that affects between 3% and 8% of women. Symptoms of depression appear around a week prior to menstruation, and disappear within a few days of menstruation beginning.

Postnatal (Postpartum) Depression can occur any time in the first 12 months after a baby is born. Some form of postnatal depression affects over 80% of new mothers, although most who are affected only have a very mild form of depression that usually passes naturally with rest and the support of family and friends. However around 15% of mothers get a more severe form of postnatal depression, and like major depression the sufferer needs treatment and support to overcome the illness.

Seasonal Affective Disorder (SAD) is a type of depression caused by the changing light levels throughout the year. The most common for of SAD is caused by the low-light levels of winter, but a much rarer form of the disorder is triggered by the high-light levels of summer.

As you can see, depression comes in many different forms - each type of depression has different triggers and symptoms associated with it, and each type of depression also responds better to different treatments. By being aware of the different forms depression can take, you can be much more prepared to help a friend of family member.



Thanks to Jason Anderson for contributing this article to our Depression blog:

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Can both be treated by anti-depressants or is the depression caused by hypothyroidism treated by an adjustment to thyroid medication. I’m curious about the connection.

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My friend is autistic and has severe clinical depression unfortuanately just about everything his docs give him has caused really horrible side effects. They’re still working on something safe but in the mean time he’s dealing with some really serious depression. What are some safe natural inexpensive remedies for depression. I’m really worried about him and want to help. If you have any suggestions I’d really appriciate it.

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Depression is a serious medical illness that involves the brain. It’s more than just a feeling of being “down in the dumps” or “blue” for a few days. If you are one of the more than 20 million people in the United States who have depression, the feelings do not go away. Depression can occur for what seems like no reason at all or can be triggered by a traumatizing life event within a person’s life. The cause of depression still remains a mystery among the medicinal world, however many experts say genes may have an effect on the likelihood of depression within a family and a lack of the chemical serotonin in the brain may be linked to depression. Just like all other medical conditions depression has a series of symptoms that can be diagnosed and treated by a medical professional and can be defined as a never ending sad mood or affect as well as a loss of interest in life and life’s activities. Although a low mood or state of dejection that does not affect functioning is often colloquially referred to as depression , clinical depression is a clinical diagnosis and may be different from the everyday meaning of “being depressed.” Many people identify the feeling of being clinically depressed as “feeling sad for no reason”, or “having no motivation to do anything.” One suffering from depression may feel tired, sad, irritable, lazy, unmotivated, and apathetic. Clinical depression is generally acknowledged to be more serious than normal depressed feelings. It often leads to constant negative thinking and sometimes substance abuse . Extreme depression can culminate in its sufferers attempting or committing suicide . Without careful assessment, delirium can easily be confused with depression and a number of other psychiatric disorders because many of the signs and symptoms are conditions present in depression , as well as other mental illnesses including dementia and psychosis .

Depression may be described as feeling sad, blue, unhappy, miserable, or down in the dumps. Sometimes this is because of a loss, or a change. The feeling of sadness, though, is appropriate and transitory. When such feelings persist and impair daily life, they may signal an underlying depressive illness. So it is the severity and duration of symptoms, plus the presence of other features, that help distinguish this normal sadness from a depressive disorder. Depression is more than just a mood disorder, it is a real illness that not only affects one’s mood and thoughts but also appetite, sleep patterns and one’s self esteem. It may also involve physical symptoms, such as stomach pains, headaches and rapid heartbeat. There are several different types of depression, so you will hear terms like major depression, endogenous depression, chronic depression, and so on. These terms tend to describe the predominant symptoms, their severity or their duration.

Causes of Depression

Depression may be triggered by stressful life events, other illnesses, certain drugs or medications, or inherited traits. Although causes of depression are not entirely understood, we know it is linked to an imbalance in brain chemistry. Once the imbalance is corrected, symptoms of depression generally improve. Some researchers feel that severe depressions are caused by a physical defect in the body, such as a biochemical imbalance in the brain or other factors. Other things that have been linked to depression have to do with a person’s lifestyle. Things such as; food allergies, prescription drugs, caffeine, alcohol, illicit drugs and even tobacco. If a person has some sort of health problem such as; cancer, aids, hepatitis, diabetes, hypoglycemia, chronic pain, hormonal (glandular) disorders such as those of the thyroid, parathyroid and adrenal glands; malignancies, anemias or other blood problems, or even somethings like nutritional deficiencies, heredity and bad childhood experiences can cause depression.

Symptoms of Depression

1. Difficulty sleeping or oversleeping.

2. Change in weight.

3. Feelings of worthlessness.

4. Loss of identity.

5. Lack of concentration.

6. Feelings of anxiety.

Treatment of Depression

There are many treatments available for depression, including counselling and medicines, but the first step is always to get a physical and psychological assessment to find out whether you have a depressive illness. Anti-depressant medications are often used. There are different types and the doctor will recommend which is the right one under the particular circumstances.



Thanks to Juliet Cohen for contributing this article to our Depression blog:

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