This document discusses diabetes mellitus and its impact on quality of life. It defines diabetes as a chronic disease characterized by high blood glucose levels resulting from problems with insulin production or effectiveness. The three main types of diabetes are described as type 1, type 2, and gestational diabetes. Uncontrolled diabetes can lead to serious complications that damage blood vessels and nerves, increasing risks of limb amputations, organ damage, and reduced life quality. While medication, diet, and lifestyle changes can manage the disease, maintaining healthy glucose levels presents ongoing challenges. The document stresses rehabilitation counselors' role in addressing both physical and psychosocial needs to help people with diabetes secure employment and education for an improved quality of life.