In this episode, Don interviews Marissa Troiano, a lawyer, Muay Thai fighter, and weightlifter. They discuss Marissa's journey as an athlete and how she balances her various pursuits. The main theme that emerges is discipline, as Marissa shares her daily routine and the importance of consistency. They also touch on the importance of finding what works for you and not comparing yourself to others. Marissa emphasizes the role of data and technology in optimizing performance and self-knowledge. In this part of the conversation, Marissa and Don discuss the importance of tracking and evaluating personal data to optimize health and performance. They emphasize the value of using tools like WOOP to track individual progress and compare it to personal averages rather than external standards. They also discuss the benefits of using the Health App to consolidate health data and share it with healthcare professionals. They highlight the importance of building a network of trusted professionals, including doctors, physical therapists, and coaches, to support overall well-being and injury prevention. They also touch on the importance of finding a sustainable and individualized approach to nutrition and exercise. In this conversation, Marissa and Don discuss the importance of individualized training for female athletes. They emphasize the need for coaches to assess athletes' specific needs and tailor their training programs accordingly. They also debunk the myth that weight training will make women bulky, highlighting the difficulty of building significant muscle mass. Marissa shares her personal experiences with injuries and the importance of finding a coach who can provide effective cues and adjustments. They also touch on the role of nutrition and the misconceptions surrounding carbs and fat in women's training. Overall, the conversation highlights the importance of understanding and respecting the unique needs and capabilities of female athletes.