Introduction Caffeine-rich beverages, such as coffee, energy drinks, tea, and soft drinks, are among the most widely consumed beverages worldwide, especially during daily activities, study, and work. With the rise in temperatures during the summer season, environmental factors increasingly affect the balance of fluids and electrolytes in the body, which directly impacts kidney function. The kidneys are vital organs responsible for regulating body fluids, filtering blood, and maintaining internal homeostasis, making them highly susceptible to dehydration and heat stress. The Effect of Caffeine on the Body and Kidneys Caffeine is a central nervous system stimulant and has a mild diuretic effect when consumed in high amounts, leading to increased fluid loss through urination. In hot weather, the body also loses additional water and electrolytes through sweating. Therefore, excessive consumption of caffeine-containing beverages may contribute to dehydration and fluid imbalance. Chronic dehydration can reduce blood flow to the kidneys, impairing their normal function and potentially increasing the risk of kidney stones or acute kidney injury, especially in individuals who do not consume sufficient water. Main Health Effects of Excessive Caffeine Intake During Summer Increased risk of dehydration Higher likelihood of kidney stone formation Imbalance of fluids and electrolytes Increased workload on the kidneys Possible elevation of blood pressure and heart rate However, moderate caffeine consumption combined with adequate water intake is not considered a direct risk for healthy individuals. Prevention and Health Recommendations To maintain kidney health during hot weather, the following is recommended: Increase intake of water and natural fluids Reduce consumption of energy drinks and high-caffeine beverages Avoid prolonged exposure to direct sunlight Consume foods rich in minerals and hydration Consult a physician if symptoms of dehydration or kidney pain occur Conclusion The kidneys play a fundamental role in maintaining the body’s balance; therefore, protecting them during the summer season is essential. With the widespread consumption of caffeine-rich beverages, it is important to raise health awareness about their potential effects on kidney function, particularly in hot environments. Moderation in caffeine intake and proper hydration remain the most effective preventive measures to maintain kidney health and reduce complications associated with heat stress and dehydration. Prepared by: Ms. Tabarak Ahmed Turki Al-Mustaqbal University The First University in Iraq