No, I'm not talking about buying diet products and expensive gym memberships, I'm referring to this latest study by the Journal of Consumer Research that says people who use cash instead of cards end up buying less junk food. Apparently, buying things with cash is more painful than purchasing with a debit or credit card, which is why people tend to be less impulsive and are more restrictive with buying unhealthy food. Lo Bosworth from The Hills recently advised people to carry cash instead; it looks like she knows what she's talking about!
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