Group 1 - The article emphasizes the importance of hydration during summer workouts, advising not to wait until feeling thirsty to drink water [1] - Experts recommend maintaining a room temperature of 25℃ to 28℃ during exercise to prevent health issues such as dizziness and nausea [3] - It is noted that muscle soreness after exercise can be normal, but severe symptoms like tea-colored urine may indicate rhabdomyolysis [5][7] Group 2 - The distinction between weight loss and fat loss is highlighted, with experts suggesting that effective fat burning occurs when heart rate reaches 60%-70% of maximum heart rate [9] - Recommendations include controlling workout duration to 40-60 minutes and maintaining a heart rate of 120-140 beats per minute [9] - The article advises against excessive use of massage guns after intense workouts, suggesting simpler methods for muscle relaxation [11]