CBC/Radio-Canada tries out 30-day challenge focused on 5 ‘pillars of health’ CBC employees were invited to download the Vistance Wellness app and participate in a 30-day health challenge in early 2018. Credit: Kiev.Victor (Shutterstock) By Michael Moszberg Jul 01, 2018 Share To read the full story, login below. Login Remember me Not a subscriber? Start your subscription today!