Working night shifts more than twice a week is associated with a 40% increased risk of breast cancer, found a long term study published online on 28 May in Occupational and Environmental Medicine.
Yet the UK’s Health and Safety Executive (HSE) and the cancer establishment leave women in the dark by taking a “wait and see approach” to this occupational risk factor for breast cancer.
The Danish research found that working less than three night shifts a week doesn’t affect your breast cancer risk, but that frequent night shifts for several years may disrupt biological rhythms and normal sleep patterns, and curb production of the cancer protecting hormone melatonin. Shift work also increases your rate of developing type two diabetes and obesity.
In a recent article in Hazards magazine, Simon Pickvance, a researcher based at Sheffield University and founder member of the Alliance for Cancer Prevention, voiced concern about why the HSE presumes to know better than the UN’s International Agency for Research on Cancer.
The Alliance for Cancer Prevention wants to see action to reduce these cases of occupational breast cancer and calls on the HSE to follow the example set by the Danish Government who offered compensation for those already working up to four nights over several years.
UNISON safety reps should demand effective risk assessments on shift patterns and ensure the least unhealthy patterns are adopted. Workers need information about the risk from shift work so they can make an informed choice about what they can do to lessen the risk.
Women worried about the risk from shift work for breast cancer should contact UNISON for advice.
For further information regarding shift work see UNISON’s negotiating on shift work bargaining support guide for workplaces representatives.