Based on research, the spin classes will help alleviate some of Kathryn's stress.
Stress refers to a feeling which is of emotional or physical tension. However, it can come from any event or thought which tend to make you feel frustrated, angry, or nervous. Thus, stress is your body's reaction to a challenge or to a demand.
As Kathryn has been under tremendous stress due to work and family problems, so she decides to begin taking spin classes in order to divert her attention and by also alleviating some stress. Thus, this is based on research.
Hence, stress can be positive, such as when it helps you avoid some kind of danger.
To learn more about research here:
https://brainly.com/question/18723483
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