tired hair?

New hairdo - skipped lunch and went for a late appointment. Then back to work. The idea was to work some more but feels like someone poured all energy out of me. Could it be the colours - breathing in toxics for 1h? Or could it possibly have something to do with the complete darkness outside? So cold, so dark and me, so tired... will go home now and hope for more energy tomorrow. At least my hair turned out nicely :)