In the footage captured in Guangzhou, southern China, a woman experienced a sudden episode of low blood sugar while running on a treadmill at a gym. Fortunately, fitness coach Mr Liu happened to pass by and promptly noticed the situation, providing immediate assistance by supporting her. Liu explained that he observed the woman's unusual behaviour and realized she had lost consciousness and was unable to stand steadily. He quickly approached her, supported her, and guided her off the treadmill to rest. Within two minutes, she regained her composure. The incident occurred as a result of exercising on an empty stomach, leading to low blood sugar. Liu advises everyone to maintain a balanced diet and engage in appropriate exercise for safer and more effective workouts. The video was filmed on May 9 and provided with local media’s permission.