The reasons why cats are short of breath are:

1. The normal breathing rate of cats is between 20-30 times per minute. If it reaches 70 times, you should pay attention. It may be caused after strenuous exercise, and is usually accompanied by complications such as difficulty breathing, asthma, hypoxia, loss of appetite and other complications.

2. If the surrounding ambient temperature is high, the cat may have heat stroke. You should turn on the air conditioner immediately to let the ambient temperature drop, and feed the cat appropriate water.

3. If the ambient temperature is moderate, it may be caused by a disease and should be sent to a doctor immediately for examination and treatment.

Things to note when a cat is short of breath:

1. If the cat is short of breath after strenuous exercise, the owner should find a way to prevent the cat from coming again. Go and help soothe the emotion, calm it down and restore normal breathing.

2. If the shortness of breath is caused by too hot weather, you can first try to wipe the cat's paw pads with alcohol to physically cool down, and then feed it some drinking water.

3. If the symptoms are severe, or if the above methods are ineffective, it may be caused by disease, and you should send it to the pet hospital immediately for examination and diagnosis. Oxygen may be needed.