In one of the many health benefits of living with a cat as a pet, it helps cortisol levels in your body to be inhibited. This chemical is produced due to stress. When it goes down, you obviously feel better and de-stressed. Stress is certainly not good for your health. It poses a variety of health risks to us, such as heart disease, headache, depression, eventually leading to premature death. Getting rid of stress is one sure way to keep healthy.