EMPLOYEE WAS TAKING SAMPLES OFF OF 4 DIFFERENT WITHT HE HELP OF OTHER EMPLOYEES. AFTER GETTING SAMPLES EE AND ANOTHER WERE WORKING ON REPLACINGSIDE BOARDS ON SS-14 SCREEN. EMPLOYEE WENT HOME AROUND 4:30PM WHEN HE GOT HOME HE TOOK A COLD SHOWER TO COOL DOWN, IT DIDN'T HELP. WENT TO HOSPITAL AND DIAGNOSED WITH HEAT EXHAUSTION.