Playlists are played out. — June 7, 2017 With apologies to the dumbbell, the treadmill, this weird sledgehammer, and those extremely dubious girdles that pledge to electroshock your abs into existence for only three installments of $39.99 plus shipping and handling, the single most important fitness accessory in the world is the universal set of earbuds. Everyone has a different preference for the brand of tunes that come through them—runners prefer upbeat jams that help pace their strides, while generations
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