There may be no such thing as a ‘sugar rush’ - Sugar does not improve any aspect of mood and can even worsen it, according to new research using data from 31 studies, which found that sugar increases tiredness and lowers alertness within an hour after its consumption.

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There may be no such thing as a ‘sugar rush’ - Sugar does not improve any aspect of mood and can even worsen it, according to new research using data from 31 studies, which found that sugar increases tiredness and lowers alertness within an hour after its consumption.