Evolutionary causes for depression

According to the evolutionary theory, major depression is theorized, in some instances to increase an individual's reproductive fitness. Evolutionary approaches to depression is a psychology post specific mechanisms by which depression may have been genetically incorporated into the human gene pool, heritability and occurrence of depression by suggesting that certain components of depression are impressions, this behavior is related and attached to the social rank. The present behaviors can be explained as varieties to regulate relationships or resources, while coming to the result it is maladaptive in modern atmospheres. In this point of view when counseling the rapist they predict depression is not a biochemical illness but it’s due to the emotional distrust.

There are number of factors that cause depression they are:

1.       Past physical, sexual, or emotional misuse can cause depression later in their lifetime and turnout to be cause for the depression.

2.       Drugs like Accutane, which is used to treat acne and antiviral drug interferon-alpha, and corticosteroids, can also be one of the reason for the increase the risk of depression.

3.       It may cause due to the biological vulnerability and personal clashes or arguments with family members of friends.

4.       Unhappiness or pain due to death or loss of a loved one, though natural and unexpected, which leads to increase the risk of depression.

5.       A family history is also one reason for the depression may also increase the risk. This leads to the depression is a complex attribute which leads to be inherited across generations.

6.       The genetics of psychiatric disorders are one of the reason for the depression for example cystic fibrosis it is genetic disorder which has no treatment.

1.       Depression can also be seen during instance of new job, graduating, or getting married, or while losing a job or income, getting divorced or retiring can also be the reason.

2.       Problems like social isolation due to other mental illnesses or being cast out of a family or social group can lead to depression.

3.       Sometimes depression can be seen due to the illness.

4.       For about 30% of depression are due to the abuse problems these leads to the clinical depression.

5.       The biologically reason for the cause is due to the functioning of the brain, which has been  affected due to the chemicals due to which some parts of the brain don’t seem to be working properly leading to depression.

6.       Genetic reason is also a reason for depression that means the family runs with depression is also reason for the depression.

7.       Women are more tend to become depressed than men, this reason is not known but due to the hormonal changes that women go through in their life time is also a reason for the depression.

8.       The dreadful diseases like cancer, heart disease, thyroid problems etc. are also a reason for the depression.

9.       Trauma which means physical or emotional abuse, violence, torture is the kindling reason that may trigger a person to depression.

10.   Grief is also one or more reason which means death of a friend, loved one is a common but only certain types of loss will lead to depression.

11.   If a person experience high happiness for example getting a job, getting married, and divorce is also the reason for depression.

12.    Alcohol is also a reason for the depression.

13.   Poor sleep leads to a depression for example apnea which is disorder that leads to the depression.

14.   Bullying girls have high risk of causing depression and this leads to the suicide, risk are seen more in the bullying girls.

According to the researches for children’s certain factors like changing schools , leaving friends , and divorce in the family may tend this factors in children’s to become depressed.