Stanley Coren, author of How Dogs Think, found that dogs on average can learn 165 words once they are an adult. Dogs of a higher intelligence though, according to his ranked list, can learn around 250. This means your dog can learn many more commands than just sit and lie down! Even a breed type with a typical low IQ can still learn many different commands. Furthermore, it has been found that training dogs with their memory and learning can allow them to improve their cognitive abilities. Therefore, the more training they do, the more capable they will be to do more.