Yup its a vicious circle.
Fly you 100 per month with rest patterns all in the 18-30hrs bracket, which in turn, as previously stated, leaves you totally fooked. You therefore have a major attack of the velcro sheets virus. This in turn makes one's previously Rugbyesk chest slip southwards!
Go for annual medical knowing you are going to be given a hard time so you get stressed, you BP goes up
,and those nice people at the German Heart Clinic get another 2000+ aed to wire you up for 24 hr BP monitoring which shows that actually all is ok with your BP etc and you can be licenced to kill for another year..............when lo it all starts again!
So you vow to walk 20+mins a day .......... which you do until some guy called Al
tries to run you over whilst he texts his girlfriend driving his 4x4.
Decide that discretion is the better part of valour and go back to driving everywhere.
Wide body pilots for wide body jets is wot I says Govner
and make sure you get some proper rest.