Preparing for a marathon involves a structured training plan that typically spans several months. Runners should gradually increase their weekly mileage, incorporating long runs, speed work, and rest days. It's essential to listen to your body to prevent injuries and ensure adequate recovery. Nutrition plays a crucial role in marathon preparation. Runners should focus on a balanced diet rich in carbohydrates, proteins, and healthy fats. Staying hydrated is also vital, especially during long training runs. Additionally, practicing fueling strategies, such as using energy gels or sports drinks, can help maintain energy levels during the race.