 Half of the deaths that happen to workers will happen on their very first day of the job, and 70% of any of the heat-related deaths occur within the workers' first week of the job. If you're really out working in this heat and out in the elements, every 20 minutes, drink a cup of water. You'll feel much better. That's Ohio State University Professor Dee Jepsen, and I'm Bill Baker, Dairy Radio Now.