The person's lifespan does not change.
Work Step by Step
Regularly working puzzles adds 5 years and frequently feeling stressed takes away 5 years. Add to find the solution $5+(-5)=5-5=0$ The person's lifespan does not change.
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.