Type 2 diabetes is a chronic condition that affects how your body processes glucose, a key source of energy. It occurs when your body either becomes resistant to insulin (the hormone responsible for helping glucose enter your cells) or when your body does not produce enough insulin to maintain normal blood sugar levels. The condition can result from genetics, an unhealthy lifestyle, or a combination of both. While there is no cure, it can be effectively managed through lifestyle changes, proper diet, weight management, and treatment.