Are caffeines effects addictive?
People often say they are “addicted” to caffeine in much the same way they say they are “addicted” to shopping, working or television. Caffeine is not addictive by accepted definitions and according to most authorities. When regular caffeine consumption is abruptly ceased, some individuals may experience headache, fatigue or drowsiness. These symptoms usually last only a day or so, and can be avoided if caffeine intake is reduced gradually.