Zara is a 19-year-old biochemistry student who has been using high-strength disposable nicotine vapes constantly since the age of 15. She now uses multiple high-strength vapes every day. If she attempts to study without vaping, she experiences intense cravings, hand tremors, and extreme irritability. Her mother has a lifelong history of severe nicotine dependence, and her maternal grandmother was also a heavy smoker who died of smoking-related illness.
Discuss one biological explanation for Zara's nicotine addiction. You must make reference to the context in your answer.
Practise Edexcel A Level Psychology Content with exam-style questions for A Level Psychology. 1,059 questions covering Diagnosis of mental disorders (4 Ds), Classification systems (DSM and ICD), Schizophrenia and one other disorder, Treatments for the two disorders, Individual differences, and Developmental psychology, matched to the Edexcel A Level Psychology (9PS0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.