They all coincide with each other although they are each individually important exercise and your diet are connected,you can't have too much food and run a marathon without cramping. Too much stress will have an effect on the consistency of your diet and your diet on your exercise, now heredity is a whole other realm, you cannot control that or change it. But if you are so worried about your heredity then you should seek counseling with a mentor or a paid counselor because that will affect all of your overall health.
It depends on the disease, I would say mental confusion tho. But all of these could happen to a person, only depends on the disease
Answer:
After the blood leaves the right side of the heart it goes into the pulmonary artery and into the lungs.
Hope this helps! :)