Here's a question and a few possible answers: 

Q: John didn't like skating much, but he liked it more than his other options.  The doctor said that he needed to take better care of himself, and skating was an activity that did what to him?
Possible A: move fast, might fall, injuries, increased heart rate, hurt him

Why is "increased heart rate" an answer aligned with human common sense? 


rapid heart beat - managing side effects - chemocare