Yoga teacher, age 83

Bette Calman is a yoga instructor at age 83. She teaches as many as 11 classes a week and has no plans to retire. From News.com.au:
Yogaaaa"Even a basic posture, or just going to a window and breathing deeply, can have big benefits."

It's that spirit that has made Mrs Calman a legend. The author of three yoga books was a pioneer of the regime in Australia in the 1950s, ran yoga centres interstate for 33 years and made regular TV appearances in the 70s.
"Yoga instructor Bette Calman still going strong at 83" (Thanks, Tara McGinley!)