>>8114556Coffee will make you more tired in the long run, anon. It gives you a boost for around 30 min and then you crash lower than your baseline. Sugar is a lot worse. Combined they give you like a 20 min boost and then you crash down to the abyss. All in all it's better to not rely on them.
Tobacco boosts your mental ability for around 40 min. Then you crash hard too.