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Glossary

Nicotine Dependence

Nicotine dependence is the physical and behavioural reliance that develops with regular nicotine use. Nicotine triggers dopamine release in the brain reward system, and over time the brain adapts, driving cravings and withdrawal when levels fall.

Dependence severity is often gauged by how soon after waking a person smokes and how many cigarettes they use daily. Higher dependence usually benefits from combination treatment, pairing medicines with behavioural support rather than willpower alone.

WMedically reviewed by Dr. Wesam Abujalala, Medical Director, Holistica HealthLast updated 11 August 2026

Other glossary terms

NNeurodivergentNeurodivergent describes brains that process information differently from the majority, including ADHD and autism, framing difference rather than deficit.NNiacinamideNiacinamide is a well tolerated form of vitamin B3 used in skincare for oil regulation, redness and pigmentation support.NNicotine Replacement Therapy (NRT)NRT delivers controlled nicotine doses through patches, gum, lozenges or sprays to ease withdrawal while quitting smoking.NNicotine Vape PrescriptionIn Australia, nicotine vapes are available to eligible patients through pharmacies, with prescriptions required in most circumstances as a quitting aid.NNicotine WithdrawalNicotine withdrawal causes irritability, cravings and poor concentration in the weeks after quitting. Symptoms peak early and fade with support.AAcneAcne is a common skin condition where follicles block with oil and dead skin cells, causing pimples. Prescription treatment is available via telehealth in Australia.AADHDADHD is a neurodevelopmental condition affecting attention, impulse control and activity levels, diagnosed in Australia against DSM-5 criteria.AADHD AssessmentAn ADHD assessment is a structured clinical evaluation measuring symptoms against DSM-5 criteria, available in Australia through telehealth.AAfter Hours GPAn after hours GP provides care outside standard clinic hours. Telehealth extends after hours access to evenings and weekends Australia wide.

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