Sets and reps are the terms used to describe the number of times you perform an exercise. A rep is the number of times you perform a specific exercise, and a set is the number of cycles of reps that you complete. For example, suppose you complete 15 reps of a bench press.
I would say for stress management it would be Camilla mediatating for twent minutes every morning because when you mediatate or even yoga helps a lot of all your stresses and gets rid of them after a free minutes and then you have a very calm day the entire day.
