The thing about all systems is that they work as a whole. They are not just a bunch of disparate parts, the health of one part is directly linked to the health of the others. The same goes for the system that is your body. One of the biggest problems with people is that they treat their body like it is a bunch of different parts that have no relation to one another. If they have digestive issues they take medicine that will treat just this issue, not seeing that there are other aspects of their system that they would need to take care of as well.
If you want to treat your body in a healthy manner, you need to look at it holistically. There are a number of ways in which you can do so, but one of the best by far is to go for osteopathy. Osteopathy is technically focused on the health of your joints, it is a branch of medicine dedicated to improving mobility without using medicine. At the same time, the massages you get during osteopathy are specially designed keeping in mind the fact that working on your knee would affect your elbow in some way. Regularly getting appointments with an osteopath can help prevent a number of illnesses simply because you would not have to choose the health of one part of your body over another and would be improving health across the board.
Try and find an osteopath Bondi Junction that would really get into your overall health. An osteopath needs to know that what they are doing is an important aspect not just of reliving joint pain but of preventing illnesses in the long run as well, so find one that thinks of things like this.