Is depression or suicide inheritable?>

See Below: There's some evidence that depression and or psychiatric disorders, as well as suicidal behaviors have a familial relationship. As with many things, environment comes into play together with genes. If there are these issues in your family, please find a psychotherapist to help you work through them and create a "crisis card" in case help is needed.

Not entirely: What appears inherited is a vulnerability towards the depression and/or suicide. Think of depression as a 3-legged stool - the 3 legs being inherited vulnerability, psychological resilience and environmental stress. The vulnerability does not get activated without a deficit of resilience and/or excess of stress. Hope this helps. If you or a loved one is struggling, please seek help asap.