Dear Mark: Tweaking Sprints for a Stressful Life; Carrie’s Primal Transition http://ift.tt/eA8V8J

For today’s edition of Dear Mark, I answer one question and Carrie answers another. First up is one from Diane, a (full-time) working mother who’s noticed something interesting about her variable response to sprinting: when she’s relaxed and low-stress or on vacation, sprints lean her out; when she’s working and inundated with stress and responsibilities […]



from Mark's Daily Apple http://ift.tt/1qw7g6u