You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Habrdness of water has a beneficial effect againts which one of the following - and explain in detail?
Repos from several countries have shown an inverse statistical association between the hardness of drinking water and the death rate from cardiovascular diseases. Areas supplied with soft drinking water showed a significantly higher prevalence of either aeriosclerotic disease or degenerative hea disease, hypeension, the sudden death of cardiovascular origin. Park's Textbook of Preventive and Social Medicine, 25th edition, Page No. 787