A ddiction is the compulsive engagement with an activity despite recognition of undesirable consequences. Although seemingly straightforward, discussions of addiction are often controversial, touching on people’s beliefs about the nature of responsibility and what constitutes healthy or unhealthy behavior. In this debate, positions have ranged from Thomas Szasz’s arguments for addiction being i...

Much of the literature on heroin and opioid addiction holds that regular, long-term users of heroin and other opioids lose interest in sex as their drug using careers lengthen. Analysis of self-reports collected from IDUs in two crosssectional surveys on patterns of risk behavior in Miami-Dade County, Florida, reveals that large proportions of IDUs report using heroin before or during sex acros...

Background and Purpose: This study aimed to estimate the prevalence of sexual behaviors and sexting among students of medical science universities in southeast of Iran by indirect method. Materials and Methods: In this cross-sectional study, using a multistage non-random sampling method, we recruited 3900 students from eight universities of medical sciences from Kerman and Sistan and Baluches...