Q. Episodes of depression seem to be common over several generations in my family. Is depression genetic?
There is substantial evidence that depression is a hereditary disease. A depression gene known as 5-HTTLPR has been found.
The World Health Organization reports that about 121 million people worldwide suffer from depression. WHO estimates that depression will become the first cause of disease burden worldwide by the year 2020. Disease burden is defined as years patients must live with a disability.