A review of scientific studies has found that chocolate, long used as an emotional pick-me-up, more often prolongs a bad mood rather than helps it.
In an article currently in press for the Journal of Affective Disorders, psychiatrist Gordon Parker and his team gathered evidence from decades of studies into the mood-altering effects of the cocoa-based confectionary.
Sadly, for those hoping for a high-street mood lift, they conclude that any positive effects are limited to the anticipation and sensory properties of the popular foodstuff. Carbohydrate-heavy sweets are likely to prolong any feelings of low mood.
Link to abstract of study ‘Mood state effects of chocolate’.
pdf of full-text article.
Mind Hacks 
Damn.
Obviously a study done by men, on men. Fools.