I retired, then happily unretired. Now, at 82, I'm a pickleball coach.

Robert Warden is an 82-year-old pickleball coach in Utah.

Club Pickleball USA.

• Robert Warden retired from his job as an on-air chef on a shopping network a decade ago.
• At 75, he experienced a health scare that led him to overhaul his lifestyle and diet.
• He turned his hobby into an unexpected second career and now, at 82, he's a pickleball coach.

This as-told-to essay is based on a conversation with Robert Warden, an 82-year-old pickleball coach in Utah. It has been edited for length and clarity.