What are the biological causes of depression? Why does biology play an important role in our understanding of depression? The two primary biological causes of depression are genetics and neuroplasticity. People with the 5-HTT gene are vulnerable to depression, while neuroplasticity describes the changes that occur in your brain when depression is triggered by psychological and social factors. Biology helps explain depression that cannot be attributed to unfavorable environmental factors. Read more about the biological causes of depression.
The 2 Primary Biological Causes of Depression
