Knee pain affects millions of people. If your knees hurt, it can be very hard to exercise. Let alone trying to get around to perform regular daily activities. If you can strengthen up your knees, you can increase your mobility and activity levels. If you suffer from knee pain, it is possible to calm it down, and even stop the progression of the pain. If you can start taking care of your knees now, then in 5 to 10 years you will at least maintain your knees, if not reduce the pain.
Here is a slide show that shows some easy ways to strengthen up, and loosen up, your knees.