Daylight Saving was (re-)introduced in NSW in 1971.

I had jet black hair then, but occasionally I saw a stray bright white hair.
I'd tug it out and look at it in amazement. This happened increasingly as
the years passed, until now all my hair is white/light grey.

The correlation is clear and inescapable: my hair whitening has increased
with time - the same time as we've had Daylight Saving. The government
wants to do what it can to minimise the problems of an ageing population:
End Daylight Saving!

Disclaimer: I actually don't mind DST