In a personal recount from a 2011 autobiography, Rafael Nadal shared his belief in the benefits of cold showers, claiming they helped him achieve a focused and activated state prior to competitions. The tennis legend described emerging from the cold water feeling 'a different man,' suggesting that the experience enhanced his mental state and physical readiness for matches. As the 2023 French Open neared, one journalist decided to adopt Nadal's cold shower routine as a part of their weekly athletic activities, which included jogging and playing tennis, to explore the perceived advantages. Consultants like Laborde emphasized the physiological effects cold exposure might have on an athlete’s autonomic nervous system, particularly regarding heart rate variability. They suggested that activating the vagus nerve through cold showers aids in self-regulation, which could be beneficial for an athlete’s performance. The journalist's personal experiment began with a cold shower, designed to provoke a vigorous response that would enhance focus and energy levels before engaging in sports. However, the journalist noted that the immediate effects of a cold shower felt fleeting, and experiments indicated that shorter durations of cold exposure did not significantly differ in impact compared to longer ones. In both recreational and competitive settings, the psychological effects of cold showers were seen as crucial, aligning with Nadal’s understanding of their advantages in preparing mentally for a match. The conclusion drawn from their experiences highlighted the complex interplay between physical practices and mental readiness in sports. Through their exploration, the journalist sought to understand the fundamental aspects of Nadal's methods. The combination of physical activation and psychological focus, as described by Nadal, suggests that such practices deserve further investigation in sports science for their potential to enhance athletic performance and mental state management during competition. Many athletes could benefit from incorporating similar routines into their pre-event strategies, inspired by Nadal's early adoption of cold showers.