Can mental training improve your intelligence? No video game or mental puzzle has convincingly been shown to work. But now a group of neuropsychologists claims it has found a task that can add points to a person’s IQ – and the harder you train, they say, the more you gain.

So-called “fluid intelligence”, or Gf, is the ability to reason, solve new problems and think in the abstract. It correlates with professional and educational success and it appears to be largely genetic.

read more on new scientist website, click link