Only proposals with this special goal will be funded. The deadline for receipt of applications is January 1, 1997. May. Nearly 200 attendees heard the latest research. In the United Kingdom, nine to ten percent of all accidents involved tiredness. Between five and 20 percent of Australian crashes appear to be fatigue-related.
Caffeine takes about a half hour to be effective.
The nap can thus support the caffeine's impact. Nothing, however, substitutes for a good night's sleep. When good sleep is elusive, a sleep disorder may be the cause. For example, patients with sleep apnea awaken themselves repeatedly throughout the night. Their daytime sleepiness leaves them at heightened risk for fall-asleep crashes.