The adult mastiff needs daily moderate exercise, consisting of either a good walk or game. It does not enjoy hot weather. It can live outdoors in temperate or cool weather, but it does not do well in warm weather; in fact, even though it may be physically able to live outside, it is a breed that should live inside with its family so that it will be inclined to fulfill its role of devoted guardian. It tends to drool. Coat care is minimal.
• Major concerns: CHD, gastric torsion • Minor concerns: ectropion, PPM, vaginal hyperplasia, elbow dysplasia, PRA • Occasionally seen: cardiomyopathy • Suggested tests: hip, elbow, eye • Life span: 8 &150; 10 years • Note: Obesity can be a problem.