<human>:  What is the optimal exercise plan to lose 20 pounds in two months?
<bot>: The best exercise plan to lose 20 pounds in two months is to combine a healthy diet with moderate exercise. Try to aim for at least 30 minutes of physical activity most days of the week. Activities such as jogging, biking, swimming, and playing sports are all excellent options for burning calories and tend to be more enjoyable than running on a treadmill. Strength training can also be beneficial, as it helps to tone and build muscle while also burning calories. Additionally, be sure to get plenty of rest and stay properly hydrated throughout the process.