This thesis explores the connection between physical activity and diabetes, emphasizing the key role of physical activity in managing diabetes and improving the quality of life of patients. Diabetes is a chronic disease that occurs when the body cannot use insulin effectively or does not produce enough insulin, resulting in high blood glucose levels. The main finding of the research is that regular physical activity significantly improves blood glucose control by increasing insulin sensitivity. People who exercise regularly have lower HbA1c levels, indicating better long-term glucose control. Physical activity also reduces the risk of cardiovascular diseases, which are common complications in people with diabetes. In addition, exercise improves overall health and quality of life, reducing stress, improving mental health and increasing energy levels. The paper also analyzes specific recommendations for physical activity for different age groups and genders. Children with type 1 diabetes need at least 60 minutes of moderate to vigorous physical activity per day, while older adults with type 2 diabetes may benefit from a combination of aerobic exercise and resistance training. Despite the many benefits, challenges such as the risk of hypoglycemia require careful education and therapy adjustments for safe exercise. The work highlights the indispensable role of physical activity in the management of diabetes. Patient education, support from healthcare professionals and adjustment of exercise programs are key to successful disease management and improving the quality of life of patients. In today's world, the reduction of physical activity due to the modern lifestyle represents a significant health problem, and it is necessary to urgently increase awareness of the importance of regular exercise and promote healthy lifestyle habits for a better future for all members of society.