To reduce errors by doctors in training, medical educators have capped how long they can work. But enforcing the limits can be a challenge. iStockphoto hide caption toggle caption iStockphoto Shots - Health News Medical Residents Work Long Hours Despite Rules December 5, 2012 The traditions of medical education die hard. Many doctors in training still work extreme hours, despite rules that limit the lengths of shifts for medical residents. One residency director calls for doctors educated under the old system to stop bashing the younger generation for being soft.