Your result for The Exercise Personality Test...
-4% Patience, 12% Experience and 20% Independence!
You are an exercise-experienced individual who needs something that is challenging and quick. You are focused and independent - you enjoy working on improving yourself and you are willing to push yourself as much as is required. However, you've got a little of a patience issue, so it's probably not a good idea for you to get too involved in slow-paced workouts like yoga and pilates (though it can never hurt to incorporate as many types of exercise as possible!). Running seems to be the best bet for you.
Running is a fabulous exercise for your heart and it burns plenty of calories. It's also one of the simplest, in a way - all you need to get started is some good running shoes and some motivation. However, it does take a considerable amount of time and effort to build up the endurance necessary to cover longer distances. Increasing your speed can be a lot of work, too, though interval training can be a huge asset here. In any case, the rewards are well worth the work, if running is done properly. Beyond the joys of the "runner's high", your mental and physical health can improve immensely.
Other types of exercise you may enjoy include swimming and mountain biking.