Publication date: Aug 01, 2020
If you have a parent or sibling with depression, for instance, your risk of developing depression is 20% to 30% greater than the average person, who has a 10% risk.
A 2009 twin study in the University of Washington Twin Registry estimated the heritability of depression to be at 58% among 1,064 female twin pairs.
Another 2006 study of twins in Sweden published in the American Journal of Psychiatry found that heritability of major depression was 42% in women and 29% in men, suggesting that some genetic risk factors may be specific to sex.
Witlen says the cause of depression is multifactorial, so while your genes may increase your risk of developing genetics, they aren’t the end-all be-all.
Other factors that increase risk of PPD include a family or personal history of depression, lack of support from family and friends, and relationship, or financial trouble.
A 2007 review published in the journal Psychological Medicine found that bereavement depression is more common in people who are young, have personal or family histories of depression, have poor health, and have poor social support.
It is estimated that 10 million Americans are affected by seasonal affective disorder – or seasonal depression – which is when major depressive episodes occur during the winter or colder months.
While your genes can put you at a higher risk, they don’t guarantee you will develop depression – environmental and lifestyle factors will also play a role.
|disease||MESH||seasonal affective disorder|
|disease||MESH||Major depressive disorder|