There is an interesting finding! Our DNA can help us 1 whether we prefer coffee or tea.
Scientists in Australia studied 2 questions. First, how our genes affected our 3 ?
Second, why we like some tastes more than others? Following the study, scientists understood why some of us prefer coffee 4 others like tea more. The reason is simple.
People who enjoy bitter tastes are more 5 to drink coffee. Scientists noticed that some people were sensitive (敏感的) to the bitter taste of caffeine (咖啡因), so they were more likely to prefer coffee to tea.
Scientists 6 the data (数据) from many countries. They also found that genes aren't the only factors affecting people's tastes. Other things like our changing environment, social 7 or the effects of taking medicine can also turn us on or off coffee or tea. The researchers said we can learn to like coffee, because our favorite taste is 8 not only by genes, but also environmental reasons. Although humans naturally 9 bitterness, we can learn to enjoy bitter-tasting food 10 the environment.
