Grapefruit and athlete’s performance

Why is grapefruit called grapefruit? 
One answer: the fruits grow in clusters.Image
Is it important to know? Probably not.
What’s important?Grapefruits can interfere with absorption of certain medicines. 
David Brailsford, coach of British cycling team (Olympics 2012) believes that by breaking down and identifying every tiny aspect of an athlete’s performance and then making just a 1% improvement in each area the athlete’s overall performance can be significantly enhanced.: concept of ‘the aggregation of marginal gains’ .
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The teachers thought they could apply the coach’s idea in teaching and improving the student’s performance. 
One of creativity’s ideas: connect and combine.