Using simple classroom rulers and a clever technique, readers can determine how long it takes the brain to make decisions. It can also help you overcome differences and the tiny aggravations that may build up over time. So what can help us sharpen our memory? And there are tips and tricks, as well as solid lifestyle changes, that can help bolster your brainpower and strengthen your memory overall. The flip side, though, is that there are actionable steps you can take - and that by doing them…