Substance abuse is closely linked to changes in sexual behavior. This article explores the interplay between drug use and sexual practices, examining patterns such as increased risk-taking, transactional sex, altered libido, and the spread of sexually transmitted infections (STIs). It includes supporting data and sociological insights into how substances influence sexual decision-making and behavior.

Hobbies and item collecting serve as powerful therapeutic tools in substance use disorder (SUD) treatment. Beyond mere distraction, they help restructure behavior, provide psychological relief, and restore identity. This article explores how structured leisure activities--particularly collecting hobbies--support recovery, offering clinical evidence, case studies, and statistics to demonstrate their relevance in long-term sobriety strategies.

This review explores the integral role of the dopaminergic mesolimbic and mesocortical pathways in Pavlovian (classical) conditioning and the subsequent development of addictive behaviors. A synthesis of recent neurobiological research highlights dopamines central function in encoding reward prediction error, assigning salience to novel stimuli, and forming associative learning between conditioned and unconditioned stimuli. Emphasis is placed on how maladaptive conditioning mechanisms contribute to the development of substance use disorders and behavioral addictions. The paper integrates empirical data and statistical findings to present a contemporary model of addiction vulnerability rooted in predictive learning and dopaminergic signaling.

The global trend toward urbanization has dramatically reshaped how humans live, interact, and experience the world. Over 55% of the world's population now lives in urban areas-a figure projected to rise to 68% by 2050 (UN, 2023). While urban environments promise opportunity, mobility, and access to services, they also bring challenges: overcrowding, limited personal space, environmental stressors, and a disconnection from nature. These factors, increasingly, are being recognized as major contributors to mental health deterioration and substance use disorders (SUDs).