Exercise and weight loss are two factors that can greatly improve your joints. For those of us with painful joints, low-impact activities such as swimming, ellipticals, and cycling can be valuable alternatives to running. Also do not forget your core, you need a strong core for long-term hip and knee health. Stretching exercises can help strengthen your joints and keep your overall being well balanced.
With constant physical activity our joints start to suffer especially as we grow older, these are some good preventive habits to improve your overall.
Keep active! Stiffness may be alleviated by moderate and consistent exercises where a natural range of motion is displayed on your limbs and joints.