But according to the researchers, these negative effects are not a serious health threat. In fact, when compared to other addictive substances, such as alcohol or nicotine, caffeine is relatively benign . Dr. Griffiths points out that there is a distinction between physical dependence on a substance and actual addiction. While millions of Americans say they are addicted to caffeine, Dr. Griffiths says most of them are only physically dependent on the substance. In other words, they will suffer withdrawal symptoms , such as lethargy and headaches if they stop using it.
Actual addiction is a much more serious condition .
In order to be considered a true addict, a person must meet four criteria . Withdrawal symptoms when the substance is no longer consumed. Persistent use of the substance even if it causes or aggravates medical problems. Repeated failed attempts to stop using the substance. According to Dr. Griffiths, most coffee or soda drinkers can give up caffeine if they try.