The Mayhem 4.40 Journal is a 40-day guided journal built to develop discipline, purpose, and character through daily action in Faith, Family, Fitness, and Service. Each day includes a devotional with scripture, space to journal, track movement or workouts, prioritize family time, and practice service. Follow along with the official Mayhem 4.40 Challenge in the Mayhem Athlete app from January 5th–February 13th for daily prizes and a grand prize—a SISU sauna and cold plunge valued over $12,000, plus giveaways from Rogue, YETI, Mayhem, MTN OPS, Airwaav, VivoBarefoot, and Dollamur. Or complete the challenge any time of the year. The Mayhem 4.40 Journal is more than a challenge—it’s a tool for lasting transformation.