addicions

Addictions, sometimes written as addicions in Catalan and other languages, refer to a set of conditions characterized by compulsive engagement with rewarding stimuli despite harmful consequences. The term covers substance addictions (such as alcohol, nicotine, opioids, cannabis, and stimulants) and behavioral addictions (including gambling, gaming, internet use, eating, and sex). Not all excessive behaviors meet formal criteria, but many produce substantial impairment or distress.

The underlying mechanisms are multifactorial, involving genetic vulnerability, neurobiological changes in brain reward pathways, and psychosocial factors. Repeated exposure to addictive stimuli can lead to tolerance and withdrawal in substance-related cases, while behavioral addictions show similar neuroadaptations in reward and impulse-control circuits. These processes contribute to cravings, loss of control, and continued use or engagement despite negative consequences.

Diagnosis and classification follow established manuals. Substance use disorders are defined in DSM-5-TR by a set of criteria indicating problems with control, social impairment, risky use, and pharmacological effects, with severity levels. Gambling Disorder is formally classified as a behavioral addiction in DSM-5-TR. Other behaviors may be clinically significant but are typically categorized differently or studied as emerging conditions.

Addictions have wide-ranging impacts on health, functioning, and society. They contribute to medical illnesses (such as liver disease or respiratory issues), mental health comorbidity (like anxiety and depression), social and legal problems, and economic hardship, reducing quality of life for individuals and families.

Treatment and prevention emphasize evidence-based, integrated approaches. Pharmacotherapy can aid withdrawal, reduce cravings, or treat coexisting conditions for substance addictions, while psychosocial therapies such as cognitive-behavioral therapy, motivational interviewing, contingency management, and family or community support are central. Behavioral addictions also respond to similar psychotherapies, with peer support groups and digital interventions playing supportive roles. Prevention focuses on education, early intervention, harm-reduction strategies, and improving access to effective care.