The 75 Hard Challenge can help individuals develop mindful breathing habits by promoting daily practices that support mental clarity, stress reduction, and overall well-being. The program's structure encourages participants to engage in breathing exercises, mindfulness, and meditation to improve their breathing patterns and enhance their awareness of the breath. By committing to these habits for 75 days, participants can experience the calming and centering effects of mindful breathing, leading to improved focus and reduced stress. The challenge's emphasis on discipline and consistency helps individuals make mindful breathing a regular part of their routine. The daily reading habit can include books on mindfulness and breathwork, providing valuable insights into the benefits of mindful breathing.