13 February 2013
Just like with fitness / health / strength, a lot of intelligence is genetic, and there is nothing you can do about that part. But, like with fitness, even more of it is environment/experiences, and we have 100% control of that.
All of these things will literally stimulate the creation of new neural connections, and (to a smaller extent) even brand new brain cells. This has been definitively confirmed by plenty of independent tests (which is where the idea of "brain games" came from - although that is as yet unproven to be effective)
Plus, when you start to understand the underlying reasons for how things work, everything starts to make sense. Once you learn the fundamentals of physics, mechanics, and chemistry, all mechanical things make sense, and you can reverse engineer anything, figure out how it works, and repair it. Once you learn the fundamentals of human psychology and sociology, all human behavior makes sense, and you can avoid conflict and get people on your side, or at least their respect, no matter how different their life outlook may be.