Sit, roll over, shake. Teaching your dog a few tricks can be fun and entertaining, but what if it could be more than that?

Maggie Pearson is the owner of Tenacious Dog Training and her friend Arson here is an English Cocker Spaniel.

Maggie says you can teach your dogs tricks with a purpose. Whether it be to help them take medication or just get them to smile for a selfie, maybe old dogs actually can learn new tricks.