Not every challenge has to be massive. Not every action item needs to take you to the promised land of optimal health and body composition. Sometimes, you just want a writer you trust to devise a list of potential little mini-challenges, short self-experiments, and approachable action items. This is that list. Browse it. Jump around. See what resonates. Then get moving, and make them happen. I’m partial to 1, 5, 9, 13, 19, 20, 22, 26, and 30. But I’m sure whichever you choose will help you succeed this year. (This Mark's Daily Apple article was written by Mark Sisson, and is narrated by Tina Leaman)