Yulhee experienced a physical breakdown upon finishing a marathon. The TV show 'Run For Your Life' documented 16 crew members participating in a survival race to improve their 10km Sunset Marathon times. Yulhee, running with team leader Sean, struggled as her posture deteriorated. Despite Sean's support, Yulhee's condition visibly worsened during the run. Overwhelmed, she tearfully revealed in a post-race interview that thoughts of her children propelled her forward. Yulhee's resilience was evident as she completed the race, but exhaustion led to her collapsing at the finish line. Medical help arrived promptly, and although weak, she managed to reassure everyone by saying she was fine and even got back on her feet. Yulhee also shared an emotional moment from another episode where her son cheered for her during his elementary school entrance ceremony.