Male stare and citrus smell increase hand washing by 33%

An experiment to increase staff hand washing in hospitals found that a picture of male eyes placed at eye level increased hand washing by 33%. When this was combined with a citrus scent, the increase rose to as much as 50% more staff washing their hands with anti-bacterial gel before entering a patient’s room.

Psychological priming, or ‘nudges’ were used in the pilot study by researchers to determine the potential impact on hand washing – a significant factor in preventing the spread of infection. Nudges are a concept taken from behavioural science; words, images or signs that prompt behaviour in the observer.  Continue reading