High levels of visual focus and alertness can be achieved through deliberate practice.

“learning how to engage the cholinergic system through the use of the visual system, practicing how long can you maintain focus with blinks as you need them, but how long can you maintain visual focus on a target, just on a piece of paper set a few feet away in the room or at the level of your computer screen. These are actually things that people do in communities where high levels of visual focus are necessary.”