One of the most devastating diseases that faces our world today is Alzheimer's. For anyone who has ever experienced this tragic illness either directly or indirectly knows how severe it can be. For one father, the disease is so far along for him that it has limited his speech to almost none.

See what happens when this man is comforted by Man's Best Friend in this video courtesy of his the man's daughter Lisa Abeyta via YouTube:

This just proves the true power of having a loving pet.