Pamela Reif, a popular fitness instructor, has created a 10-minute compilation video of the best parts of her high-intensity interval training (HIIT) workouts. The video features intense exercises that target various muscle groups and increase cardio endurance. Reif's HIIT workouts are known for their effectiveness in burning calories and improving fitness levels. The compilation aims to provide a quick and intense workout option for individuals with limited time. Overall, this video is a valuable resource for those looking to incorporate HIIT into their fitness routine.