This says that users report it extending their high: https://injuryprevention.bmj.com/content/27/4/395 https://injuryprevention.bmj.com/content/27/4/395 It do

This says that users report it extending their high: https://injuryprevention.bmj.com/content/27/4/395 https://injuryprevention.bmj.com/content/27/4/395 It doesn't have to be true to drive behavior of course.