Time moves slower at the gym

In chapter three we introduce an exercise in which participants attempt to decide when fifteen minutes have passed, to help demonstrate the subjective and relative nature of time. Now a peer-reviewed study in the journal Brain and Behavior documents how time appears to pass about 9% slower for those exercising in a gym. Popular Mechanices summarizes the research here: https://www.popularmechanics.com/science/a64654408/time-moves-slower-for-humans/, and the article can be read/downloaded here: https://onlinelibrary.wiley.com/doi/10.1002/brb3.3471.