Key
Question 1.
a. False. the findings, presented at the British Psychological Society annual conference in Brighton
b. True. The flavanols, part of a group of chemicals called polyphenols, work by increasing the flow of blood into the brain.
c. False. The researchers gave the volunteers a total of 500mg of flavanol. Although the amount was too great to be found naturally in the diet,
d. True. Dark chocolate contains higher quantities of the chemical than plain or milk chocolate.
Question 2.
a. Counting backwards in multiples of 7 is a more mentally demanding task and would appear to involve a different part of the brain than counting in multiples of 3.
b. Professor Kennedy mentions chocolate, fruit and vegetables as being important to include in our daily diet. They can help us to do mental activities better, concentrate for longer periods and protect our brain.
Question 3
a binge on
b over and over
c are/be high in
Question 4
a. The brain’s ability to do maths could be improved by eating chocolate.
b. If students eat a large amount of chocolate when revising for exams, they may gain a real benefit from doing so.
c. Professor Kennedy said that the amount that they were giving was more than in the diet but that there was quite a lot of evidence that general amounts were protective.
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