Habits get automatically activated by our environment, especially so in stressful situations like when you get home hungry and tired – that time our habits are in full control of us. An effective way to change the habit is to change the environment.
Behavioural scientists Neal and colleagues had participants sit in a cinema watching trailers while others sat in a meeting room watching music videos. None were aware that the study was about eating habits; they were told it was about attitudes and personality.
When sitting in the cinema, strong habits cued by familiar circumstances had their familiar effect – people ate popcorn like robots. In the cinema, it didn’t matter whether the popcorn was stale or fresh or whether the person was starving or had a full stomach. Liking for popcorn had very little effect on how much they ate. Those with weaker popcorn eating habit did eat less of the stale popcorn.
In contrast, participants in the meeting room, all behaved, more thoughtful, whether or not they had a strong habit of eating popcorn at the cinema. They ate less of the stale popcorn, and less overall if they weren’t hungry. Even for those with strong popcorn eating habit, the change of environment was enough to disrupt their automatic behaviour. Overall, in the meeting room, people ate 50% less popcorn than those in the cinema.
Then some people in the cinema were told to eat with their non-dominant hand. If they were right-handed, they were told to eat with the left hand. This jolted them out of their habitual behaviour and brought the conscious mind back into action.
Take a close look at your kitchen. Is the first thing you see healthy or unhealthy? What’s easily accessible – fruits or packaged snacks? How big are the containers in which food is stored? How big are the plates you eat out of?
Source: D.T. Neal, W. Wood, M. Wu, D. Kurlander – The pull of the past – personality and social psychology bulletin 37, no. 11 (2011): 1428-1437