Researchers examined how and why long work shifts increase the risk for injury among miners of all kinds. They found that injured miners who worked shifts longer than 9 hours tended to have irregular schedules or less than two years on the job.
Researchers examined how and why long work shifts increase the risk for injury among miners of all kinds. They found that injured miners who worked shifts longer than 9 hours tended to have irregular schedules or less than two years on the job.