A sedentary lifestyle negatively impacts overall health by increasing the risk of developing chronic diseases such as obesity, heart disease, and diabetes. Prolonged inactivity can lead to muscle atrophy and decreased bone density, which can increase the likelihood of fractures and injuries. Additionally, sedentary behavior may contribute to mental health issues, including depression and anxiety. Regular physical activity is essential for maintaining a healthy weight, improving cardiovascular fitness, and enhancing mental well-being, making movement a crucial factor in overall health.