5. CONSUME SOME CAFFEINE BEFORE READING If it’s not too late in the day—caffeine takes eight to fourteen hours to metabolize out of your system—consider reading alongside a cup of coffee or tea. Caffeine provides an invaluable focus boost, and while you usually have to pay this energy back later in the day as the drug metabolizes out of your system, the costs are often worth it. Caffeine boosts your mental and physical performance in virtually every measurable way
