The main purpose of Modvigil 200 mg is to increase mental alertness and encourage wakefulness rather than physical endurance. On the other hand, some users may feel more energized and capable of working for extended periods of time by lowering weariness and increasing attention, which might indirectly increase endurance during intellectually or physically taxing activities. Unlike physical training or other performance-enhancing medicines, it does not immediately improve muscle or cardiovascular stamina. Each person experiences affects differently, and excessive use may result in negative side effects including anxiety, sleeplessness, or dehydration. Modvigil 200 is not a replacement for healthy living practices and should only be taken under a doctor’s supervision.