The 75 Hard Challenge can be an effective way to manage anxiety by providing structure, discipline, and a focus on self-care. The program's daily requirements help establish routines that can reduce anxiety levels by promoting physical health, mental clarity, and a sense of control. Regular exercise has been shown to reduce anxiety symptoms, and the challenge's two daily workouts support this. The focus on hydration and nutrition also contributes to overall well-being, which can positively impact mental health. Additionally, the challenge encourages participants to read daily, which can include books on managing anxiety or other personal growth topics.