Every Aussie aged between 45 and 49 inclusive is entitled to one comprehensive health check under Medicare. I recommend everyone in that age group asks their doctor to give em one. Most of them are bulk billed (I know....work for Health Dept) and buys you a good amount of quality time with the doc. They should check everything - blood test for chlorestorol, iron, insulin etc etc, skin check, bodily functioning, mental health, everything. It doesn't pay for followup treatment/s if necessary, but blood tests are free at least.
I had the check late last year and as a result got one basal cell carcinoma cut off my mug - good riddance. Go get em guys, and live longer as a result. Just say you want 'the 45 yr old health check'.