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, stressful life events, medications, and medical problems.
What is the biological cause of depression?
The predisposition to developing depression can be inherited. Other biological causes for depression can include physical illness, the process of ageing and gender. Stress can trigger depression but understanding its particular meaning to the person is important.
What is the biochemical theory of depression?
The discovery of antidepressant drugs in the 1950s led to the first biochemical hypothesis of depression, which suggested that an impairment in central monoaminergic function was the major lesion underlying the disorder.
What is the genetic explanation for depression?
Many researchers believe there’s no single gene that puts someone at risk for depression. It’s more likely a combination of genes that lead to the disorder. The causes of bipolar disorder and anxiety disorders may also be traced to a combination of genetic factors.
Is depression biological or cognitive?
Depression results from systematic negative bias in thinking processes. Emotional, behavioral (and possibly physical) symptoms result from cognitive abnormality. This means that depressed patients think differently to clinically normal people.
What is the number one cause of depression?
Research suggests that continuing difficulties – long-term unemployment, living in an abusive or uncaring relationship, long-term isolation or loneliness, prolonged work stress – are more likely to cause depression than recent life stresses.
What happens to brain during depression?
There’s growing evidence that several parts of the brain shrink in people with depression. Specifically, these areas lose gray matter volume (GMV). That’s tissue with a lot of brain cells. GMV loss seems to be higher in people who have regular or ongoing depression with serious symptoms.
Can you get depression genetically?
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.
Are you born with depression or does it develop?
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). Or it could mean that in some cases, the tendency to become depressed is almost completely genetic, and in other cases it is not really genetic at all.
Is depression a learned 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.
Is anxiety and depression inherited?
The brain function that underlies anxiety and depression is inherited, a new study finds — but there is still plenty of space for experience and environment to reduce the risk of a full-blown mental disorder. The research focused on rhesus monkeys.