The root cause of depression could be either a single factor or multiple co-existing factors and it needs careful diagnosis for figuring out the root cause.
Finding out the root cause of depression is vital for the treatment to be successful.

Let us understand the possible causes of depression:

What are the biological factors causing depression?

Biologically depression is a result of chemical imbalance. But, research points that depression doesn’t arise from having too much or too little of certain neurotransmitters in the brain and spinal cord and that there could be many possible causes of depression, including faulty mood regulation by the brain, genetic vulnerability, stressful life events, certain medications and medical problems.

The neurotransmitters involved in causing depression are serotonin and nor-epinephrine.

Which psychological factors could trigger depression?

People facing too many stressful events might be depressed. Stressful events could be major life changing events like any physical illness, abuse (childhood abuse, emotional abuse, physical abuse, sexual abuse etc) , relationship issues with parents/children/spouses, financial worries, unemployment etc.

Can family history of depression increase the risk of depression?

A family history of depression may increase the probability of struggling with depression in many families. Children, siblings and parents of people with depression are more vulnerable to suffer with depression than are members of the general population.

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Which environmental factors are linked to depression?

Various studies indicate the problem of environmental pollutants in depressive disorders, studies are underway to find the exact relationship between environmental factors and depression.

Environmental exposures like green space, noise, air pollution, weather conditions, housing conditions etc might trigger mental disorders or be protective factors, facilitating stress reduction, mental recovery, etc. depending on the identification of triggers and making appropriate life style modifications for recovery.

According to a study published by PLOS Biology – Environmental pollution is associated with increased risk of psychiatric disorders in the US and Denmark. These results of the above study show that air pollution is significantly associated with increased risk of psychiatric disorders.

Growing Evidence for the Impact of Air Pollution on Depression.

Research suggests that electrical pollution (caused by the low-level electromagnetic fields at intensities generated by the electrical equipment used in houses) may be linked to mood disorders. Researchers point out that particular radio wavelengths emitted by these devices can promote depression.

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