Cigarette Smoking and Cognitive Decline in Midlife: Evidence From a Prospective Birth Cohort Study
Open accessAbstract
OBJECTIVES: The authors investigated the effects of cigarette smoking on midlife cognitive performance. METHODS: Multiple regression was used to test the association between cigarette smoking and changes in cognitive test scores among male and female members of the British 1946 birth cohort aged between 43 and 53 years. RESULTS: Smoking was associated with faster declines in verbal memory and with slower visual search speeds. These effects were largely accounted for by individuals who smoked more than 20 cigarettes per day and were independent of sex, socioeconomic status, previous (adolescent) cognitive ability, and a range of health indicators. CONCLUSIONS: The present results show that heavy smoking is associated with cognitive impairment and decline in midlife. Smokers who survive into later life may be at risk of clinically significant cognitive declines.
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Early nicotine exposure during the transition from child to adult may harm by disrupting normal brain maturation and causing lasting effects on cognitive ability, mental health, and personality.
“Early exposure to nicotine during the transition from child to adult may be harmful, since it may derange the normal course of brain maturation and have lasting consequences for cognitive ability, mental health, and even personality (Brown et al. 1996; Choi et al. 1997; Richards et al. 2003; Brook et al. 2004; Deas 2006).”
From Short- and Long-Term Consequences of Nicotine Exposure during Adolescence for Prefrontal Cortex Neuronal Network Function (2012) · cites this paper as Richards et al. 2003
The Discussion reports an association between cigarette smoking and faster verbal-memory decline from ages 43 to 53, supporting the claim’s cognitive-harm component. The study assessed smoking in adulthood, however; it does not establish that nicotine exposure during the transition to adulthood disrupts brain maturation or causes lasting effects on mental health or personality. Page numbers are unavailable in our copy. (LLM, conf=0.88)
Experimental — accuracy not yet measuredSmoking is a prospective risk factor for impaired cognitive function later in life.
“Smoking is a prospective risk factor for impaired cognitive function in later life”
From Short- and Long-Term Consequences of Nicotine Exposure during Adolescence for Prefrontal Cortex Neuronal Network Function (2012) · cites this paper as Richards et al. 2003
The Abstract and Discussion report that heavy smoking was associated with cognitive impairment and faster verbal-memory decline between ages 43 and 53. The Discussion suggests that smokers who survive into later life may face clinically significant decline, but says continued follow-up is needed to determine that risk; it does not establish smoking as a risk factor for impairment in later life. (LLM, conf=0.86)
Experimental — accuracy not yet measuredHeavy smoking predicts incident cognitive impairment and cognitive decline.
“heavy smoking predicts incident cognitive impairment and decline (Cervilla et al. 2000; Richards et al. 2003)”
From Short- and Long-Term Consequences of Nicotine Exposure during Adolescence for Prefrontal Cortex Neuronal Network Function (2012) · cites this paper as Richards et al. 2003
The Abstract and Discussion report that heavy smoking was associated with poorer cognitive performance and faster verbal-memory decline between ages 43 and 53. The paper does not report incident cognitive impairment as a measured outcome; it describes changes in test scores and only suggests a possible risk of clinically significant decline later in life. (LLM, conf=0.86)
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References 20 · Cited by 204
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- Authors
- Richards, M., Jarvis, M. J., Thompson, N., & Wadsworth, M. E. J.
- Affiliations
- Cancer Research UK (GB)
- Venue
- American Journal of Public Health
- Publisher
- American Public Health Association
- Published
- 2003-06
- Volume
- 93
- Issue
- 6
- Pages
- 994-998
- ISSN
- 0090-0036 (ISSN-L)
- 1541-0048
- PMC
- PMC1447882
- OpenAlex
- W2111750001
- Cited by
- 204
- References
- 20
- Citations by year
- 2026: 4 · 2025: 6 · 2024: 8 · 2023: 4 · 2022: 7 · 2021: 11 · 2020: 2 · 2019: 12 · 2018: 8 · 2017: 9 · 2016: 9 · 2015: 10 · 2014: 16 · 2013: 8 · 2012: 13
- FWCI
- 4.61
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- American Journal of Public Health (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- UCL Discovery (University College London) (submittedVersion)
- Topics
- Health Sciences › Medicine › Physiology › Smoking Behavior and Cessation
- Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Abilities and Testing
- Keywords
- cigarette smoking, cognitive decline, midlife, verbal memory, heavy smoking, cognitive impairment, 1946 birth cohort, sex differences
- MeSH terms
- Adult, Cognition Disorders, Educational Status, Female, Follow-Up Studies, United Kingdom, Humans, Male, Memory, Middle Aged, Neuropsychological Tests, Occupations, Prospective Studies, Reading, Smoking, Social Class, Visual Perception, Cohort Studies, Smoking Cessation, Comprehension
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