Recovery from a monster workout can sometimes take as long as two weeks. Most people weight train every other day as it is a traditional method. A study in the Journal of Sports Physiology Performance showed gender differences in recovery capacity following weight training. The results showed men needed at least 48 hours of recovery to achieve the same strength levels as previous workouts, while women needed only 4 hours of recovery. The most likely explanation is that men are capable of exerting greater relative force during intense workouts, which makes it more difficult for them to recover.