Easy, a genetic predisposition only means you have a weakness for a disease. If you put no stress on the weakness the disease will not show up. It is like the old saying about the weakest link in a chain. You will never find the weak link in the chain if you never pull on it.

Naturopathic Doctors like me believe that there are five avenues that allow disease into our lives. The first is what you bring into your body by food, water and air. The second is what is not eliminated allowing toxins to buildup and cause disease. The third is lack of activity and exercise causing poor blood flow encouraging build up of toxins, poor nutrition and insufficiency of oxygen to the body cells. The fourth is stressful people and situations in the workplace and at home. The fifth being poor spiritual foundation with no belief on the higher power. These are the stresses that can cause one twin to put more stress on their genetic chain and end up with MS.

If you just have a genetic weakness then make sure that you place no stress on those five areas. If you already have a disease like MS, just relieve the stress by undoing what you have already done. This would really help your body greatly. Go in for cleansing and detoxification of your body to expel all the toxins. Do regular exercises to improve blood supply to bring nutrients and oxygen to your body cells. Get rid of or ignore all stressful people and situations at work and home and do find a spiritual center to worship the higher power.