It certainly puts stress on the cardiovascular system. eg https://www.theguardian.com/uk-news/2023/sep/26/woman-likely-suffered-sudden-cardiac-death-during-wat

It certainly puts stress on the cardiovascular system. eg https://www.theguardian.com/uk-news/2023/sep/26/woman-likely-suffered-sudden-cardiac-death-during-water-therapy-in-uk-inquest-hears https://www.theguardian.com/uk-news/2023/sep/26/woman-likely...