The man would apparently play mobile games for hours and hours on end each day, swiping and tapping his phone. As a result, his hand is now injured, and he cannot bend his finger properly.
A doctor appeared in the news broadcast, confirming that this is supposedly 100 percent possible. The doctor also gave an odd analogy about cartilage and rubber tires, explaining that you can only get so much mileage. Or so much rubber. Or cartilage. Or something.