Yul Kwon rises at 6am and starts his day with stretches and a fitness regimen that includes planking for 60 to 90 seconds, 50 sit-ups, 50 squats, and standing on one leg for a minute and then the other – twice. He then eats a banana and, every other day, he heads out for a 10km (6.2-mile) run.
That is an impressive regular warm-up for a 90-year-old.
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