I don’t need the medical board to tell me when I’m too old to practise

I am a one legged, pacemaker-driven, 80-year-old GP, and I am still working three days a week in a busy, CBD practice.
I also do one day a week on call for Doctors’ Health NSW.
I take a few pills and work out in the gym, three times a week.
But now it seems the medical board is worried my brain is shrinking faster than my prostate is enlarging.