I have a close friend who has Parkinsons disease and is having a problem getting it under control. His doctor has put him on a cpap machine and medication but it does not seem to be working. His doctor is saying his disease is getting worse because his road job schedule doesn't allow him to sleep constantly the same hours (normal road board schedule) and he should quit his job. His doctor says he needs a 9 to 5 job or 6 to 3 or some scheduled job like that. Any suggestions would be helpful. Thanks.