VOICED : Walk this way says Chinas heavy

Mr. Jung, a 52-year-old factory owner, is known for lifting iron shoes weighing over 400 kg, attributing his strength to Qigong, an ancient Chinese practice. He walks 15 meters daily in these shoes, claiming health benefits like back pain relief. Despite his Guinness record claim, it remains unproven. Inspired by TV, Jung made his own shoes, influencing neighbors to adopt the practice. His shoes are produced near Beijing, priced at $90 a pair, and he aims to expand globally. The shoes are too heavy to steal, adding a unique security feature.

What challenges does Mr. Jung face in proving his claim about the heaviest shoes?

What health benefits does Mr. Jung believe come from wearing iron shoes?