Core Viewpoint - The article emphasizes the importance of proper hydration during the autumn and winter seasons, highlighting the need for both quantity and quality of water intake to maintain health and well-being [1][4]. Group 1: Importance of Hydration - As temperatures drop and air becomes drier, the body experiences "hidden dehydration," which can lead to various health issues such as fatigue and skin dryness [1]. - The article discusses the significance of not only drinking enough water but also ensuring the water consumed is of high quality, rich in essential minerals and nutrients [1][4]. Group 2: Levels of Drinking Water - Expert Wang Hao outlines three levels of drinking water requirements: safety, health, and functionality. Safe water is the foundation, while healthy water contains beneficial minerals, and functional water can improve physiological states [4][5]. - The article stresses the importance of developing good drinking habits, such as drinking small amounts frequently rather than waiting until thirsty [5]. Group 3: Nutritional Aspects of Water - Expert Shu Weiqun points out that while food provides many nutrients, water is a crucial supplement, especially for minerals that may be lacking in the average diet [6][7]. - The article cites a survey indicating that many people are in a state of "hidden hunger" regarding mineral intake, which can affect health outcomes like bone development in children and osteoporosis in adults [7]. Group 4: Water Source and Quality - The article highlights the importance of water source protection, with expert Shen Lirong discussing the classification of water sources and the need to respect natural ecosystems to ensure water quality [8]. - It is noted that water can be a significant source of minerals like calcium and magnesium, which are essential for bone health and cardiovascular disease prevention [8].