大寒养生四要点：护阳气、调饮食、适运动、防疾病

Group 1 - The article emphasizes the importance of scientific health maintenance during the "Great Cold" period, which is the coldest time of the year, focusing on enhancing physical fitness and preventing diseases [1][2] - Recommendations for daily routines include going to bed around 10 PM and waking up after sunrise to maintain the balance of yin and yang in the body [1] - Dietary suggestions include consuming warming foods such as lamb, beef, longan, and red dates to improve cold resistance, while also incorporating foods that nourish and moisturize, like pears and lily bulbs [1] Group 2 - Exercise should be performed during sunny and warmer times of the day, specifically between 9-11 AM or 3-5 PM, with gentle activities like Tai Chi and walking recommended [1] - The article highlights the increased risk of respiratory diseases during the Great Cold season, advising individuals to keep warm and ensure good air circulation [2] - It stresses the need for patients with cardiovascular and joint diseases to monitor their conditions closely and maintain warmth in their joints while engaging in moderate activity [2]