Answer:
→He might get rid of his cough if he doesn't smoke so much.
No, it does not according to the study. the study states it is just a placebo effect (it works because you expect it to.)
Answer:
Some people are worried about the equipment that people use for the Paralympic Games because they are worried the prosthetic legs may give the runner an advantage. The text says that technology has improved a lot, so some of the artificial legs that people use may be able to run faster than what the wearer can naturally run.
As for the last part, I will give you my opinion to help but I encourage you to try to think of your own because you know this is an opinion thing and everyone is different.
I think that leaders should make a change, because like the text said, single amputees might feel discouraged from entering the running competitions because they know that the double amputees potentially have an advantage. It would basically be like cheating. The leaders should do a background check of what the double amputees are using, so that they know the artificial legs only allow the person to run at the speed they are naturally capable of
