What did neurologist daniel levitin discover after examining many different studies of expertise?

Researchers working along with Doctor Levitin studied patients who were about to have a procedure. Participants were asked to either listen to music or take pills. Scientists tracked patient's ratings of their own worrying, as well as the levels of Cortisol.

The results were fascinating; the participants who decided to listen to music were more relaxed and less stressed than their counterparts who took medication.

were,have settled (b) mark brainliest : )

original oratory is a competitive event in the national speech and debate association, stoa usa, national catholic forensic league, and other high school forensic competitions in which competitors deliver an original speech on a subject of their choosing, though the speech must be factual.racial discrimination refers to discrimination against individuals on the basis of their race. policies of racial segregation may formalize it, but it is also often exerted without being legalized and also it means facing injustice.