Pets are natural mood enhancers.It only takes 15 to 30 minutes with a dog or cat or watching fish swim to feel less anxious and less stressed. Your body actually goes through physical changes in that length of time that make a difference in your mood. The level of cortisol, a hormone associated with stress, is lowered. And the production of serotonin, an important chemical associated with well-being, is increased. Reducing stress saves your body a lot of wear and tear.

You still have to watch your weight and exercise. But having a pet can help you manage your blood pressure. In one study of 240 married couples, pet owners had lower blood pressure and lower heart rates during rest than people who did not own a pet.

To manage cholesterol, doctors still recommend that you follow guidelines regarding diet, exercise, and medication. But owning a pet has the potential of making it easier to avoid the dangers of cholesterol. Researchers have noted lower levels of cholesterol and triglycerides in people who own pets compared to people who don't. However, this could be attributed to lifestyle factors of pet owners.