Dear Mark: How Many Sprints Per Week, How to Play and Train with Babies, and the Best Nighttime Snack

For today’s Dear Mark, I’m answering three questions. First, how often can a person sprint safely and effectively? There are many factors to consider when determining the amount of sprinting a person can handle each week, like stress levels, sleep, and other training, so it’s tough to give a specific number. Next, what are new parents […]

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

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