Want to maintain your flexibility as you age? Use common sense. You have to move. Get outside of the normal activities that you perform on a day to day basis. Sitting on the couch is not going to increase your flexibility. Getting up to go to the sink and get some water, or the fridge to grab something to eat is not going to improve your flexibility. Just move.
Incorporate some sort of stretching exercises. Once again, you don’t have to do them every single day. It’s great if you can. I don’t work out every single day, but I would highly recommend at least four days a week. It’s important to do so because if you don’t use it, you will lose it.
Motion is lotion. We talk about that in our office all the time. When joints and bodies get stuck, they start to degrade and degenerate. They start to break down. Any kind of motion outside of your normal activity is going to increase flexibility, which is ultimately going to slow down the aging process.