Business Longevity Tips: 90-Year-Old Karate Black Belt Reveals Secrets by Marcus Liu - Business Editor September 20, 2025 by Marcus Liu - Business Editor September 20, 2025 90-Year-Old Martial Arts Master Embodies Healthy Aging When 90-year-old martial artist Ben Rocuskie of Harrisburg, Pennsylvania, was asked if he can still fend off an attacker, he didn’t hesitate. “Without … 0 FacebookTwitterPinterestEmail