Causes of shortness of breath in adult Golden Retrievers:

1. If a Golden Retriever undergoes strenuous exercise, it will pant and become short of breath.

2. Golden Retrievers will pant quickly when they are in a stressful environment.

3. If the golden retriever has cardiovascular disease, it will also cause the golden retriever to breathe more quickly.

4. If a golden retriever is infected with parasites, it will also affect the lungs and cause shortness of breath and wheezing.

5. If your golden retriever is sleeping and breathing rapidly, it may be caused by dreaming.