It is not some panacea that just makes the brain work better overall, but it helps boost a learner's effort.

BBC: Brain stimulation promises 'long-lasting' maths boost

This is an improved physiological state which enables Jason's brain to work properly at times when it would normally shut down.

BBC: NEWS | Health | How to temper your temper

It's based on his work using functional magnetic resonance imaging brain scans that first demonstrated that, when people are asked to imagine themselves in retirement, the parts of their brains that usually "light up" when they think about themselves don't light up at all.

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