[churchman phil]

I'm 40 this year and I have an annual MOT at the doc's every April. BP, Blood Test, etc.
I don't smoke at all or drink heavily (maybe 6 units a week, tops!!), eat good wholesome food and get regular exercise.
Can't see anything wrong in getting it done as when you get told you're fit as a fiddle when the results come through that more than makes up for it.
If anything is found to be wrong (touch wood it isn't) chances are it would be in the early stages and can be more readily treated.