Alaska's commercial fishers work in one of the world's harshest environments. Many of the hardships they endure include isolated fishing grounds, high winds, seasonal darkness, very cold water, icing, and short fishing seasons, where very long work days are the norm. Fatigue, physical stress, and financial pressures face most Alaska fishers through their careers. Out of 948 work-related deaths that took place in Alaska during 1990-2006, one-third (311) occurred to fishermen. This is equivalent to an estimated annual fatality rate of 128/100,000 workers/year. This fatality rate is 26 times that of the overall U.S. work-related fatality rate of approximately 5/100,000 workers/year for the same time period.