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In a cell-based study, the researchers identified two compounds in coffee that directly affect certain high-sensitivity nicotine receptors in the brain. In smokers, these brain receptors can be hypersensitive after a night of nicotine withdrawal.
The recently published findings have yet to be tested in humans but are an important step toward better understanding how coffee and cigarettes affect nicotine receptors in the brain, said Roger L. Papke, Ph.D., a pharmacology professor in the UF College of Medicine. Caffeine is coffee’s feel-good ingredient for most people but smokers may get another kind of boost.
“Many people like caffeine in the morning but there are other molecules in coffee that may explain why cigarette smokers want their coffee,” Papke said.
The researchers applied a dark-roasted coffee solution to cells that express a particular human nicotine receptor. An organic chemical compound in coffee may help restore the nicotine receptor dysfunction that leads to nicotine cravings in smokers, the researchers concluded.
The findings have led Papke to a broader hypothesis: One of the compounds in brewed coffee, known as n-MP, may help to quell morning nicotine cravings.
Papke said he was intrigued by the idea that nicotine-dependent smokers associate tobacco use with coffee in the morning and alcohol in the evening. While alcohol’s effect on nicotine receptors in the brain has been thoroughly researched, the receptors’ interaction with coffee has been studied less.
“Many people look for coffee in the morning because of the caffeine. But was the coffee doing anything else to smokers? We wanted to know if there were other things in coffee that were affecting the brain’s nicotine receptors,” Papke said.
Coffee increases consumer spending, says another study
However, a global research team said customers are prone to impulsive purchases after consuming coffee, tea, or soda at retail stores or car dealerships.
About 85% of Americans consume at least one caffeinated beverage every day with coffee being the primary source of caffeine, followed by tea and soda. Caffeine is also found in energy drinks, chocolate, and in many over the counter and prescription medications.
These researchers said, “Understanding how and why caffeine consumption influences spending is important since caffeine is one of the most powerful stimulants that is both legal and widely available.”
The study finds that drinking a caffeinated beverage before shopping leads to more items purchased at the store and increased spending. Their studies also show that the effect of caffeine is stronger for “high hedonic” products such as scented candles, fragrances, décor items, and massagers and weaker for “low hedonic” products such as notebooks, kitchen utensils, and storage baskets.
Yoga awareness campaign of the Ministry of Ayush with the help of human size Yoga mascots in the run up to the International Day of Yoga, at Metro Walk Mall, Rohini, in New Delhi on June 10, 2017.(PIB Photo)
Caffeine also impacted the types of items bought at the stores. The group that took in caffeine bought more hedonic (enjoyable/fun) items such as scented candles and fragrances. However, there was very little difference between the two groups with regard to utilitarian purchases such as utensils and storage baskets. Also, the effects of caffeine on spending hold for those who drink a little over two cups of coffee (or less) daily and is weakened for heavy coffee drinkers.
“Overall, retailers can benefit financially if shoppers consume caffeine before or during shopping and that the effects are stronger for high hedonic products. This is important for retailers to factor in to determine the proportion of hedonic products in their stores. Policy makers may also want to inform consumers about the potential effects of caffeine on spending,” conclude the researchers.
