Not worrying about anything is everything

Story highlights

  • Useless worry is detrimental to our overall mental and physical well-being
  • A simple exercise will help you learn whether you're worrying needlessly

This essay is part of a column called The Wisdom Project by David Allan, editorial director of CNN Health and Wellness. The series is on applying to one's life the wisdom and philosophy found everywhere, from ancient texts to pop culture. You can follow David at @davidgallan. Don't miss another Wisdom Project column;