Heritability is probably 40-50%, and might be higher for severe depression. This could mean that in most cases of depression, around 50% of the cause is genetic, and around 50% is unrelated to genes (psychological or physical factors).
Depression is known to run in families, suggesting that genetic factors contribute to the risk of developing this disease. However, research into the genetics of depression is in its early stages, and very little is known for certain about the genetic basis of the disease.
Some of us may experience depression after going through an unwelcome, stressful or traumatic event. There are many different types of event that might trigger depression. But some examples include: Losing your job or experiencing money problems.
In most cases, the younger the person is when they get anxiety or depression, the more likely it is to be hereditary. Anxiety and depression can still be genetic if they show up in your older family members. But often, new conditions in people that are over the age of 20 are linked to painful or stressful life events.
That is the case for major depression. Heritability is probably 40-50%, and might be higher for severe depression. This could mean that in most cases of depression, around 50% of the cause is genetic, and around 50% is unrelated to genes (psychological or physical factors).
Depression can happen to anyone. People who have lived through abuse, severe losses or other stressful events are more likely to develop depression. Women are more likely to have depression than men.
No one knows exactly what causes it, but it can happen for a variety of reasons. Some people have depression during a serious medical illness. Others may have depression with life changes such as a move or the death of a loved one. Still others have a family history of depression.
There is no cure for depression, but many different treatments are available to manage the symptoms. The symptoms of depression vary among individuals. A treatment plan that includes medical interventions, support, and lifestyle changes can enable a person to live a normal and full life with the condition.
Research by the National Institutes of Health shows that you lose gray matter volume (GMV) when you suffer from depression. This loss is caused by parts of your brain shrinking due to the hormone cortisol impeding the growth of your brain cells. The more serious depression a person suffers, the more GMV they lose.
Clinical depression is a chronic condition, but it usually occurs in episodes, which can last several weeks or months. You'll likely have more than one episode in your lifetime. This is different from persistent depressive disorder, which is mild or moderate depression that lasts for at least two years.
Rather, a behavioral psychologist uses principles of learning theory to explain human behavior. According to behavioral theory, dysfunctional or unhelpful behavior such as depression is learned. Because depression is learned, behavioral psychologists suggest that it can also be unlearned.
Research suggests that depression doesn't spring from simply having too much or too little of certain brain chemicals. Rather, there are many possible causes of depression, including faulty mood regulation by the brain, genetic vulnerability, and stressful life events.
People with clinical depression often have increased levels of monoamine oxidase A (MAO-A), an enzyme that breaks down key neurotransmitters, resulting in very low levels of serotonin, dopamine and norepinephrine.
Depression ranges in seriousness from mild, temporary episodes of sadness to severe, persistent depression. Clinical depression is the more-severe form of depression, also known as major depression or major depressive disorder.
Though depression may cause temporary changes to the structure and functions of your brain, you can potentially heal this damage.
Depression Cannot Go Away By Itself
Depression is a mental health condition which requires treatment. In fact, the symptoms could worsen if left untreated. As a result, it is vital to seek and receive treatment to prevent symptoms from getting worse.
There's no sure way to prevent depression. But you can: Find ways to handle stress and improve your self-esteem. Take good care of yourself.
There's no single cause of depression. It can occur for a variety of reasons and it has many different triggers. For some people, an upsetting or stressful life event, such as bereavement, divorce, illness, redundancy and job or money worries, can be the cause. Different causes can often combine to trigger depression.
The average age of onset for major depressive disorder is between 35 and 40 years of age. Onset in early adulthood may be linked with more depressive episodes, a longer duration of illness, and therefore a more difficult clinical course.
This, says Bill Deakin, has pointed them to several relevant features of brain function. They include cognitive flexibility - our capacity to adapt our thinking to different situations - and also the extent to which our brains concentrate on processing and remembering happy, as opposed to sad, information.