Weight maintenance and exercise help a great deal in reducing the strain on joints, also how and where you exercise your dog. Bloat is a life-threatening emergency. Death can occur within 4 hours of onset, and it is a hideous, painful death. Once a dog bloats, chances are, it will bloat again. Entropian and Ectropian are conditions of the eyelids, and are correctable using varying degrees of surgery.
Saints are also rather high on the predisposition list for epilepsy , which causes seizures.
If it goes above 80 degrees, you cannot play catch with your dog. The consequences could be tragic. It doesn't cover the hereditary things like dysplasia, of course, but it has helped tremendously.