Disabilities, both physical and mental, are significant challenges for people living with diabetes. Physical impairments, such as difficulties with mobility, vision, and communication, often result from diabetes-related complications including cardiovascular disease (CVDs), while mental health issues, including depression, are exacerbated by the psychological burden of managing the disease. Type 2 diabetes (T2D) is associated with a higher risk of CVDs, which can lead to impaired activities of daily living (ADL), especially among older adults. Meanwhile, people with type 1 diabetes (T1D) face challenges like hypoglycemia, which contribute to physical disabilities. Mental health is equally affected, with depression and diabetes distress common in both T1D and T2D patients. These mental health conditions negatively impact diabetes self-care, increase the risk of complications, and are linked to cognitive decline and dementia. T1D is an autoimmune condition where the immune system destroys insulin-producing pancreatic β-cells, leading to a lifelong dependence on insulin therapy. In contrast, T2D is primarily characterized by insulin resistance and often associated with obesity, physical inactivity, and genetic risk factors. Both conditions present a heightened risk of disabilities, though lifestyle changes can improve outcomes in both cases. Mental health challenges, particularly depression, are common in both T1D and T2D due to the psychological burden of managing the disease. Diabetes-related depression is linked to cognitive decline and increased dementia risk. The underlying mechanisms include insulin resistance, oxidative stress, inflammation, and stress, all of which can be mitigated through lifestyle interventions such as regular exercise and a healthy diet. Consistent diabetes care focusing on diet and exercise is essential for preventing both physical and mental disabilities in people with diabetes.