KiwiRail has made the move to ban workers from using sleep aids such as melatonin and Zopiclone, citing safety concerns.

Experts have voiced concerns with these changes, as many of the impacted staffers were shift workers who relied on medication to get through the odd hours.

Dr Alex Bartle from the Sleep Well Clinic joined the Afternoons team to discuss the dangers of working shift work - and whether a reliance on sleep meds is helpful or harmful.

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