... just watched the newly-installed Leader of the Opposition "powdering his nose" for the cameras on ITV's News at Ten. Now I realise that at 40 he's actually on the verge of what is generally accepted as early middle-age ... but he looks more like a schoolboy. Likewise, Deputy Prime Minister, Nick Clegg!
Time was when the first telltale signs of feeling that bit older manifested themselves upon noticing that police officers and doctors almost surreptitiously began to appear younger than they ever had before.
But nowadays, whenever I see practically anyone who's still working at all ... I know it's a fair bet he or she is younger than I am.
Scary thought!