Mood and mental health significantly contribute to physical fitness as they impact motivation, energy levels, and overall engagement in fitness activities. A positive mindset can enhance workout performance, making it easier to stick to exercise routines. Conversely, negative emotions or mental health issues such as depression or anxiety can lead to decreased motivation and less active lifestyles. Thus, addressing mental health through strategies like therapy or mindfulness can improve not just emotional well-being but also physical health outcomes, fostering a comprehensive approach to overall fitness.