StressisdescribedbytheWorldHealthOrganisationasthe"healthepidemicofthe21stcentury"andexpertsbelieveitcancontributetoseriouslifethreateningdiseasessuchasdiabetes,dementiaandsometypesofcancer.Inthesesuperbusymoderntimesmillionsofpeopledescribethemselvesasstressedandmanyseemtowearitasabadgeofhonour.But...