Core Viewpoint - The article discusses the concept of "heat cold" (热伤风) in traditional Chinese medicine, emphasizing its causes, symptoms, and recommended dietary adjustments during the summer season to prevent and treat this condition [1][3]. Group 1: Causes and Symptoms - "Heat cold" is classified as a type of summer damp cold caused by the invasion of summer heat and humidity into the body [1]. - Symptoms include body aches, chest fullness, loss of appetite, diarrhea, and prolonged low fever [5][4]. Group 2: Dietary Recommendations - It is advised to avoid excessive consumption of cold drinks and greasy foods, as they can aggravate internal dampness and stimulate gastrointestinal discomfort [6][7]. - Recommended foods include green leafy vegetables and fruits high in vitamin C, while maintaining a light and easily digestible diet [7][8]. Group 3: Environmental Considerations - It is suggested to keep indoor and outdoor temperature differences within 8 to 10 degrees Celsius, with air conditioning set around 26 degrees Celsius [8]. - After exercise, it is important to hydrate with warm water and avoid direct exposure to cold air [8].

Group 1 - The article highlights the significant deficiency of dietary fiber in the Chinese diet, which is linked to various health issues such as constipation, increased blood sugar, and blood lipid levels [4][3][9] - Dietary fiber is recognized as the "seventh essential nutrient" and plays a crucial role in metabolism and overall bodily function [6][8] - The recommended daily intake of dietary fiber for adults is 25-30 grams, but actual consumption has been declining since 1982, with average intake dropping from 13.3 grams in 1992 to 9.9 grams in 2015 [9][13][10] Group 2 - The primary sources of dietary fiber in China are grains (43.4%) and vegetables (36.2%), with fruits contributing only 4.5% [16] - Urban and rural dietary structures show differences, with rural residents relying more on grains for fiber intake compared to urban residents [18][17] - The decline in dietary fiber intake is attributed to the increased consumption of refined grains, which have lower fiber content compared to whole grains [30][31] Group 3 - The reduction in whole grain and coarse grain consumption is significant, with a dramatic decrease in the intake of millets and other grains by 84% from 1982 to 2015 [22][23] - The increase in meat consumption has led to a shift in dietary patterns, with a nearly threefold increase in per capita meat consumption from 1981 to 2015 [27][26] - The prevalence of refined grains has risen, with refined rice and flour dominating the market, leading to a further decrease in dietary fiber density [31][30] Group 4 - Insufficient dietary fiber intake is linked to serious health risks, including cardiovascular diseases, type 2 diabetes, and increased mortality rates [40][41] - Studies indicate that increasing dietary fiber intake by just 10 grams daily can reduce overall mortality risk by approximately 10% [45] - High-fiber foods include whole grains, legumes, and certain traditional ingredients, which can be incorporated into daily meals to improve fiber intake [48][56]

Core Viewpoint - The article emphasizes the importance of health maintenance during the "Xiaoshu" solar term, focusing on methods to prevent heatstroke, nourish the heart and spleen, and eliminate dampness and heat [1][2]. Group 1: Health Maintenance Strategies - The primary focus during this period is on preventing heatstroke and maintaining a balanced diet in accordance with seasonal changes [1]. - Recommendations for outdoor activities include wearing sun protection gear such as hats, masks, and sunglasses, as well as applying sunscreen to prevent skin damage [1]. - Indoor climate control is advised through the proper use of air conditioning and fans, ensuring ventilation to maintain a comfortable environment [1]. Group 2: Dietary Recommendations - Foods that help strengthen the spleen and alleviate dampness include lentils and yam, which are beneficial for digestion and energy [2]. - Classic combinations for dampness removal include adzuki beans and coix seeds, which can be prepared as porridge or soup [2]. - For heat-clearing and cooling, various melons such as watermelon, winter melon, and bitter melon are recommended due to their high water content and cooling properties [2].