The American Mastiffs love children and are totally devoted to their families. Dignity rather than gaiety; quiet, calm, loving, loyal and devoted. They should be protective, but not aggressive. They are neither shy nor vicious. This dog breed is not for everyone but, for the right owner and family, they are loving and loveable companions and are docile and gentle.
American Mastiffs tend to be healthy and happy dogs with fewer reported incidents of many of the health problems generally seen in other large breeds.
American Mastiffs typically live for 10 to 12 years.
