Many researchers are now involved in the evaluation of ways to halt the effects of ageing. In terms of IQ and cognitive ability, I have written extensively on how General Intelligence (or G) can be decomposed into two broad types of intelligence: (1) fluid intelligence (Gf), which is akin to raw processing power of the brain …

As discussed in previous posts, IQs can change over time. In particular, IQ scores may change fairly substantially during childhood and typically stabilize in your teenage years. This can be seen as good news as there may be scope to influence the development of IQ . But it is important to distinguish between the different …