I was reflecting on that show which demonstrated Sam Alladyce's cortisol levels went through the roof and thought - I bet teachers could be tested to show levels of cortisol. All very well saying workload, pay, conditions, etc., they will Jeremy Hunt-style face you down. But teachers' cortisol levels? That's a positivist, scientific, comparable measurement. Well, turns out there is something called hair cortisol. So we could get teachers to have their hair tested for cortisol levels over periods of time and match that to the school year. Presumably there are recommended levels for cortisol? Any science teachers able to advise here? Could be a nice little study paper. The testing seems to be fairly easy to arrange through companies such as Salimetrics.