How much exercise should a one year old Labrador Retriever have?

The short answer is, a lot. Labrador Retrievers were originally bred to be field dogs, working as guides, trackers and retrievers of shot birds and other game. They have a lot of energy and a lot of stamina, so you will need to run your puppy ragged on a consistent basis. I would suggest at least one hour of play/run in the morning and another 2-3 hours of playing, running, walking and work in the evenings daily. However, if you can do more, that would be a good idea.

Labradors who get bored and have too much energy often become destructive, tearing up furniture and various items (such as baseboards, shoes, curtains, etc). This is simply their way of burning off energy, but it makes for a very unhappy household.