Increasing how well our brain works is one of the key goals of education systems, and for many people it is an on-going drive through life. Many careers involve a need to think more clearly that the competition, to see problems with greater clarity than others or handle more data than the opposition. There are claims that a modest increase in average IQ translates into a noticeable increase in national wealth, and national wealth has linkage with national health. So if you could find a brain boost it would be a no-brainer to use it.
An article in the Guardian eloquently shows just how far we are from achieving that.
In it, Oliver Burkeman checked out the various claims associated with products ranging from brain-food drinks, to on-line mind trainers and electrodes stuck to the head. The end outcome is that the highest achievers are controversial at best. Most are in the snake oil territory, but even the ones that have some claim for success are disputed.
For a brain booster to be worthwhile, the benefit needs to be out of dispute. If you need to have a massive population take the stuff before you can start to see a statistically significant benefit above the random noise of normal, then the effect isn’t very effective.
Interestingly the take home from the piece is that if you really want to boost the brain, then stop using tools that make life easy. Using a sat-nav soon causes you to loose the ability to map read. Using a diary makes you sloppy at remembering where you need to be. It’s just the same as driving to work will reduce your fitness to walk.
To boost the brain you need to use it. There is still no magic fix.