Sleepy Medical Interns

In recent studies they have found that medical intern students are working too many hours. The interns were hooked to machines to moniter them. They found that on average the interns nodded off around 5 times when working the long shifts. In 2003 interns were limited to 4 weeks with 80 hours a week. That is too many hours to be working. So far no deaths have been caused by mistakes due to the lack of sleep. Hospitals have now cut intern hours to 12 in surgery and 18 in medicine. What do you think needs to be done?