Eat cheese before you ask your boss for raise / promotion

Alamy: Tryptophan is present in several foods and
cheese is a particularly good source

It may look like an ordinary cheese sandwich – but it could contain the vital ingredient that helps you successfully negotiate that pay rise.
Scientists have found that people with high levels of the brain chemical serotonin are more likely to succeed in delicate negotiations affecting their own interests. Serotonin is manufactured in the body from the amino acid, tryptophan, which is present in several foods – and cheese is a particularly good source.

Eating a cheese sandwich before entering the boss's office could therefore give your brain that vital edge.

Psychologists at the University of Cambridge who manipulated the diets of volunteers to alter their serotonin levels found that when the levels of the brain chemical were low the volunteers were more likely to allow emotion to rule their heads and make decisions that harmed their long-term interests.

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