The 30-Day Plank Challenge is a fitness program designed to improve core strength and stability over a month. Participants gradually increase the duration of their plank holds each day, starting from a manageable time and progressing to longer holds. This challenge can be done at home without any special equipment, making it accessible for everyone. The challenge typically begins with a 20-second plank on day one and increases by 10 seconds each day. By the end of the 30 days, participants aim to hold a plank for up to 5 minutes. This simple yet effective routine can enhance overall fitness and endurance.