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:
The Immigrant Contribution is a story written to show the reader all the things Immigrants have done for us as a whole and how we should appreciate the things they do for us because some of the things that need to be done that we are not willing to do willow done by immigrants maybe to get some money to provide for people.
<span>Olympic snowboarders' determination drives them through the rigorous training required to remain competitive in the sport.</span>