Withdrawal symptoms are caused by quickly getting off of some types of medication. When you are being weaned from this type of medication, the drug's half-life will be considered so that those with a longer half-life will take longer to come off of. Medication side effects occur usually when the blood level of the drug is not in its steady state. That's why it's important to follow the dosage and duration recommendations to the letter. Otherwise, the body will react and the effect of the drug will be either toxic, as in more than intended, or not therapeutic, as in ineffective for treatment.
Swire notes that there are three main causes: “the continuing effects of Moore’s Law — or the idea that computing power doubles every two years, the sociology of information technologists, and the different source and methods for signals intelligence today compared with the Cold War.” One factor is that spreading leaked information is easier than ever. In the past, it was often difficult to get information published. Newspapers feared legal repercussions if they shared classified information. Anyone can now release secret information, often anonymously, as with WikiLeaks. Governments cannot as easily rely on media gatekeepers to cover up leaks.