Comfort Zone Challenge Database- (LAUNCHES FEB. 2019) I've been doing these challenges for a while and have seen how powerful they are to make big changes in your life. Tools this useful should be easily accessible to everyone. This is why I created the largest database of comfort zone challenges on the internet, with descriptions. I'm working on creating accompanying videos for many of the challenges, a PDF version of the database, as well as a guide on how to use them.