About 830 million people around the world have diabetes, according to the World Health Organization (WHO) and the number is raised. This chronic metabolic disease caused by increased blood glucose (or blood sugar) can lead to serious damage to the heart, blood vessels, eyes, kidneys and nerves, over time, which means that the blood sugar level is crucial. Because there are different types of diabetes, and there is no single size for its control, making certain lifestyle changes, of course, can help. Here are 5 effective ways to improve blood sugar and diabetes.