On days with bad weather, especially rainy days, it's easy to give up on running. However, moving your body when it rains can be a refreshing experience. In fact, several studies have shown that running in rainy weather can make it easier to regulate body temperature, potentially improving exercise performance. Before running on a rainy day, proper preparation is necessary. Basically, you should prepare clothes and shoes with waterproof features. Running shoes with enhanced moisture resistance provide both slip resistance and foot protection. Additionally, a lightweight waterproof jacket helps maintain body temperature while ensuring breathability. It's also important to thoroughly warm up your body before running. Since the ground becomes more slippery when it rains, you should ensure joint flexibility through stretching, focusing on the ankles and knees. This greatly helps reduce the risk of injury. When you start running in earnest, it's good to start against the wind to prepare for windy weather. When you return, the wind can push you, reducing energy consumption. This method is one of the strategies recommended by experts and is particularly useful for runners training for marathons. In the case of marathons, a 2017 meta-analysis study found that training in various weather conditions can contribute to building stress resistance. There's no need to give up running on rainy days. Rather, you can enjoy the fun of overcoming the climate. The important things are safety and enjoyment. Using a daily certification app to adjust your training plan according to weather conditions and maintaining motivation through interaction with the runner community are also good methods.