> Some people have no problem with caffeine and sleep though. True fact #1: all bodies are different. True fact #2: caffeine is a CNS stimulant. True fact #3

> Some people have no problem with caffeine and sleep though. True fact #1: all bodies are different. True fact #2: caffeine is a CNS stimulant. True fact #3: even if some people have no problem with caffeine and sleep, many do. The author acknowledges being sensitive to caffeine.