The accelerating pace of the global fashion cycle increases the pressure. A decade ago, the big athletic-show brands gave factories ninety days from receiving an order to delivering a product; several years ago it was sixty days, and now it is thirty days. Orders are getting smaller, to allow for a rapid response when fashions change, and workers live inside this unpredictable cycle. Only on Thursday does their boss tell them if they must work overtime on Saturday. During busy times, the sole department runs double shifts; employees take turns working the day shift one month and the night shift the next, their internal clocks scrambled and their bodies struggling to catch up.