No, depression is not only caused by physical reasons. It is a complex disorder and can be caused by a variety of factors, both physical and psychological.
Physically, depression can be caused by changes in brain chemistry, hormonal imbalances, or a medical condition. Neurotransmitters like serotonin, dopamine, and norepinephrine regulate mood, and imbalances in these hormones can cause depression. Additionally, some chronic illnesses, such as thyroid disease, can lead to depression.
Psychologically, depression can be caused by life events or stressors. Traumatic experiences such as the death of a loved one, loss of a job, or a natural disaster can cause depression. Additionally, chronic stress can lead to depression, as can long-term exposure to difficult work or home environments.
Furthermore, genetics can play a role in depression. Research suggests that depression can run in families and can be passed down from one generation to the next.
Overall, depression is not only caused by physical reasons, but can be the result of a variety of factors, both physical and psychological. Therefore, it is important to consider all possibilities when attempting to diagnose and treat depression.