Core Viewpoint - The article discusses the exacerbation of "old cold legs" symptoms in elderly individuals during winter and provides preventive and care methods based on traditional Chinese medicine [3]. Group 1: Understanding "Old Cold Legs" - "Old cold legs" is categorized as "bi syndrome" in traditional Chinese medicine, caused by the invasion of wind, cold, and dampness when the body's vital energy is insufficient [3]. - The condition is prevalent among the elderly, who often experience a deficiency in liver and kidney energy, leading to poor nourishment of muscles and bones [3]. Group 2: Recommended Care Measures - **External Protection**: It is advised to wear knee protectors and warm clothing, and to apply heat to the joints for 15-20 minutes daily to improve blood circulation and dispel cold and dampness [4]. - **Internal Nourishment**: Dietary recommendations include consuming warming foods like ginger and garlic, and nourishing foods such as walnuts and black beans, along with traditional herbal soups [4]. - **Movement for Muscle Health**: Gentle exercises like Tai Chi and specific leg movements are encouraged to promote joint lubrication and strengthen surrounding muscles [4]. - **Foot Soaking**: Soaking feet in warm water before bed is recommended to enhance circulation and dispel cold, with the addition of herbs like mugwort for better effects [4].