Marathon runners face unique challenges, including physical fatigue, mental endurance, and environmental factors. The long-distance nature of marathons, often exceeding 26 miles, demands extensive training, stamina, and pacing strategies. Runners must manage hydration and nutrition to avoid dehydration and energy depletion. Additionally, psychological challenges arise, such as self-motivation and maintaining focus throughout the race. Weather conditions, terrain variation, and competitive pressure can influence performance, making mental preparation and strategic planning essential for success in marathons.