The phrase "horrible disease" refers to a very bad and serious illness that causes suffering and can be very harmful to a person's health and well-being. Full definition
They are responsible for destroying healthy cells... and have been linked to all sorts of horrible diseases like cancer, dementia, diabetes and others. (supplementscience.net)
Children dying from horrible diseases that they had no control of? (redeeminggod.com)
We have an epidemic of autoimmune and other horrible diseases; and they don't. (ggenereux.blog)