Core Insights - High-intensity fitness has become a significant method for many young people to pursue health and body shaping, but the relationship between external muscle appearance and internal balance of qi and blood is not always direct [1][2] - Over-exercising and low body fat in women can severely impact qi generation and circulation, leading to menstrual irregularities, which is viewed as a deficiency in qi and blood [2][3] - The concept of "excessive labor depletes qi" in traditional Chinese medicine suggests that the impact of exercise on qi consumption depends on the intensity and individual capacity [2][3] Group 1 - The spleen and stomach are considered the "foundation of postnatal life" in traditional Chinese medicine, responsible for transforming food into qi and blood, which nourishes muscles [1] - Muscle appearance may not accurately reflect qi levels; individuals with developed muscles may still exhibit signs of qi deficiency if their digestive functions are weak [1][2] - Clinical observations show that some muscular young individuals present symptoms of spleen deficiency, indicating that muscle shape is not the sole indicator of health [1][2] Group 2 - Appropriate exercise can promote qi and blood circulation, enhance organ function, and is part of a positive process, while excessive exercise can lead to symptoms of qi deficiency [2][3] - Signs of suitable exercise include feeling energized and having good appetite and sleep, while signs of over-exercise include persistent fatigue and disruption of normal life [3] - Different body types should choose exercise types and intensities that suit their individual conditions for optimal results [3][4] Group 3 - Individuals with qi deficiency should engage in gentle, low-intensity exercises, while those with yang deficiency can benefit from moderate aerobic activities in warm conditions [3][4] - People with phlegm-damp constitution may require higher intensity aerobic and strength training to achieve their fitness goals [4] - Strength training is not entirely prohibited for those with qi, yang, or yin deficiency, but should be approached with caution regarding intensity [4][5] Group 4 - The key to balancing health and fitness lies in prioritizing health while using fitness as a tool to achieve specific health goals [5] - Understanding one's body constitution and adhering to natural rhythms are fundamental to maintaining health [5] - The ultimate pursuit should be a vibrant life that can self-regulate and harmonize with nature, rather than striving for perfection [5]