True,all forms of aerobic activity can promote cardio respiratory fitness.
True as alzheimer’s is a disease that destroys memory so the cells themselves degenerate and die
It would be easier because it would result in a smaller interest rate.
Many things can cause shortness of breath, but the most common are asthma, pneumonia, bronchitis, lung cancer, anxiety, an allergic reaction, a lung injury, obesity, heart dysfunction, COPD and many many more things.
As for treating this, see your physician. Hope I helped you!