Caffeine is bad for night work. It gives physical stimulation, but it suppress cerebral cortex. Also : you’re not more energetic, but unambiguously you’re more

Caffeine is bad for night work. It gives physical stimulation, but it suppress cerebral cortex. Also : you’re not more energetic, but unambiguously you’re more nervous on caffeine (Forgive me my bad English, it’s not my native)