Group 1 - The article discusses "post-holiday syndrome," which is characterized by a lack of appetite, mental fatigue, and anxiety due to a sudden change in lifestyle after holidays [1] - It emphasizes the importance of restoring regular routines, such as avoiding electronic devices before sleep and maintaining a consistent wake-up time [1] - Dietary adjustments are highlighted, recommending a reduction in greasy and spicy foods while increasing the intake of high-fiber vegetables and quality proteins [1] Group 2 - The article addresses psychological aspects, such as "work anxiety" and emotional lows, suggesting active self-adjustment techniques like deep breathing and outdoor activities to alleviate stress [2] - It advises against forcing oneself to immediately return to work mode, recommending a gradual transition starting with simpler tasks [2] - Engaging in conversations with trusted friends or family is encouraged to combat feelings of isolation and negativity [2]

Core Viewpoint - A recent study from Central South University Xiangya Hospital highlights that excessive vigorous exercise can impair cognitive function through a muscle-derived mitochondrial vesicle called otMDV, emphasizing the importance of maintaining moderate exercise intensity for brain health [4][7]. Group 1: Relationship Between Exercise and Cognitive Function - The relationship between exercise and health follows an "inverted J-shaped" curve, indicating that moderate exercise promotes health, while excessive exercise can lead to adverse effects such as muscle fatigue and cardiovascular dysfunction [6]. - The study analyzed data from over 300,000 participants in the UK Biobank, revealing a "J-shaped" relationship between exercise and cognitive function, where moderate exercise is beneficial, but exceeding a certain threshold leads to cognitive decline [9]. - The optimal "dose" of vigorous exercise is approximately 1216 MET-min per week; exceeding this threshold results in a decline in cognitive function, a pattern validated across different age and gender groups [9]. Group 2: Mechanisms of Cognitive Impairment Due to Excessive Exercise - Excessive vigorous exercise leads to lactate accumulation in muscles, stimulating the secretion of otMDV, which can cross the blood-brain barrier and interfere with mitochondrial function in hippocampal neurons, crucial for learning and memory [11]. - OtMDV disrupts synaptic function through two mechanisms: first, it binds to the mitochondrial anchoring protein Syntaphilin, preventing normal mitochondria from anchoring at synapses; second, the mtDNA carried by otMDV activates the cGAS-STING signaling pathway, inhibiting the transport of the neuron’s own mitochondria to energy-demanding synaptic sites [13][14]. - These mechanisms collectively lead to a synaptic energy crisis, resulting in synaptic loss and cognitive decline [15]. Group 3: Human Study and Implications - A clinical trial involving 40 regular exercisers divided into moderate and excessive exercise groups showed that the excessive exercise group had significantly higher levels of PAF+ MDV in their blood, with decreased neural activity in the hippocampus and poorer performance in fluid intelligence and digit memory tests [18]. - The level of PAF+ MDV was directly correlated with the degree of cognitive decline, indicating the real risks of excessive exercise in humans [18]. Group 4: Potential Strategies for Prevention and Treatment - The research team developed neutralizing antibodies targeting the PAF protein, which effectively blocked the cognitive impairment caused by otMDV in animal experiments, suggesting a new avenue for treating cognitive disorders related to excessive exercise [20]. - Key factors include controlling the duration of intense exercise, with short bursts (15-45 minutes) causing only temporary lactate elevation, while prolonged intense exercise (over 60 minutes) leads to sustained high lactate levels and otMDV secretion [20]. - The study emphasizes the importance of moderation in exercise, listening to bodily feedback, diversifying exercise routines, and ensuring adequate rest and recovery [20].

Group 1 - The article discusses the arrival of the "Li Qiu" (Beginning of Autumn) solar term, indicating a transition from summer to autumn, despite the lingering heat [1][8]. - It highlights traditional customs associated with "Li Qiu," such as eating watermelon or cantaloupe, referred to as "bite autumn," symbolizing the end of summer heat and the anticipation of harvest [8][10]. - The article emphasizes the importance of balanced nutrition during this season, suggesting that "Ti Qiu Piao" (a practice of gaining weight in autumn) should not only focus on meat but also on a well-rounded diet [10]. Group 2 - The article mentions the significance of "Shai Qiu" (sun drying in autumn), a traditional agricultural practice that celebrates the joy of harvest, which has been followed for centuries in some regions [13]. - It advises on dietary preferences for the autumn season, recommending a shift towards sour flavors and a reduction in spicy foods to prevent dryness and maintain health [18]. - The article encourages physical activity during this time, coinciding with the Chengdu World University Games, promoting the idea of striving for excellence in personal endeavors [20].