The long-term impacts of a sedentary lifestyle on health include increased risks of chronic diseases such as obesity, diabetes, cardiovascular diseases, and certain cancers. Prolonged inactivity can lead to weight gain and decline in muscle strength, flexibility, and overall fitness. Sedentary habits also negatively affect mental health, contributing to higher rates of anxiety and depression. Furthermore, lack of movement can deteriorate bone health and increase the risk of osteoporosis. Incorporating regular physical activity into daily routines is crucial for offsetting these risks and promoting overall health and longevity.