Thats more to do with too intense light or too much heat mate. Not actually the length of time the lights on for.
Quite a few other things can cause it too to be fair. My current lot are foxtailed like mad cos I buggered up the timer on my photos and they tried to reveg.
24 hours light isnt something that would be considered a cause though.
Sometimes it's even just a genetic thing . Not had that yet but I want it. Seen some crazy plants that done that.
yeahh long periods of intense light caused mine , i had no choice, too cold here in winter , now ill be doing 20/4 and a timer on a oil radiator for the 4 hours