Lower back pain affects people of all ages and most people experience it at least once in their life. In 2020, it impacted 619 million people worldwide, a number projected to reach 843 million by 2050. Closely linked to spinal health, it's an issue we can't ignore. In this episode of "Health Talk," CGTN's Guo Meiping speaks with Liu Xiaoguang, vice president of Peking University Health Science Center, about what you need to know to keep your spine healthy.