> I think we're just disagreeing on different interpretations of the word effective. That's likely. I'm using the word in the sense of clinical efficacy, i.e.

> I think we're just disagreeing on different interpretations of the word effective. That's likely. I'm using the word in the sense of clinical efficacy, i.e. how likely an intervention is to produce the intended outcome. In this case the response rate to the intervention in those with depression [0]. Preemptive double mastectomy is the most effective way to date to prevent breast cancer [2] (~95% reduction). This is important for those at heightened risk, for example those with pathological variants of BRCA 1 & 2 which each independently increase the risk of breast cancer 5 fold (up to 70%!)[1]. Coupled with other factors some women are statistically almost certain to get breast cancer if they live long enough. We can't mince words with peoples lives. People with severe depression deserve to know that ECT is a safe treatment and the most effective treatment available. And there should not be stigma in any treatment. Similarly, pre-emptive mastectomy the most effective prophylactic intervention available for preventing breast cancer. And important for those who are at very very high risk. [0] https://www.collinsdictionary.com/dictionary/english/clinical-efficacy https://www.collinsdictionary.com/dictionary/english/clinica... [1] https://www.cancer.gov/about-cancer/causes-prevention/genetics/brca-fact-sheet https://www.cancer.gov/about-cancer/causes-prevention/geneti... [2] https://www.macmillan.org.uk/cancer-information-and-support/worried-about-cancer/causes-and-risk-factors/inherited-breast-and-ovarian-cancer https://www.macmillan.org.uk/cancer-information-and-support/...