A NEW study will examine the effects of caffeine on diet. The study will investigate how people feel the caffeine in coffee, tea and cola.
Prof Peter Rogers of Bristol University said: "The consumption of tea is a national institution in the UK and coffee houses have sprung up all over our high streets.
"However, ask anyone how much caffeine they consume in their diets and they'll find it hard to answer. We need people's help to increase our understanding of caffeine and the effects on health, well-being and sleep."
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