I am the previous poster agian, who read about the possible unhealthyness of "circut racing",. I liked hearing what you all had to say about how you felt it was healthy and natural. This is my first dog...he is still a pup. I feel more like what you do after reading ...as he grows. Right now he has had three exhuastion attacks ( not low blood sugar)and I would think that could be part of why the vet agreed to keep our puppy not so worked up. Sounds as if he should grow out of this....and then be able to enjoy expending that energy like "you" have stated. Thanks
