1. Dogs lower your rate of cardiovascular disease because they motivate owners to exercise and give social support.<br />2. Pets help reduce stress, lowering rates of high blood pressure and cortisol.<br />3. They may help some children with autism, aiding in communication, cooperation and attention span.<br />4. A 2008 study shows that horses can help people cope with trauma.<br />5. Pets can help elderly people have a sense of purpose, reduce stress and help them socialize. <br />