28 Day Challenges28 Day Plank Challenge 28 Day Plank Challenge by doctorjeal February 22, 2019 by doctorjeal February 22, 2019 1 minutes read Challenge yourself to plank for 28 days with the the DoctorJeal 28 Day Plank Challenge, 0 FacebookTwitterPinterestLinkedinTumblrRedditStumbleuponWhatsappEmail