Figure - available from: Journal of Alzheimer's Disease
This content is subject to copyright.
Mean global cognitive score (95% CI) by year and quartiles of tea consumption among Chinese adults aged ≥55 years and who attended at least two waves of cognition tests, China Health and Nutrition Survey.
Source publication
Background
Previous studies suggest a positive effect of tea intake on cognition. Additional micronutrients that may moderate this association was not previously examined.
Objective
To examine the association between tea consumption and cognition and explore the interaction between tea consumption and iron intake.
Methods
Data from the China Heal...
Similar publications
Objective
To explore the associations between the consumption frequencies of alcohol, tea and sugar-sweetened beverages (SSBs) and the hypertension risk among Chinese adults.
Design
A longitudinal study of the effect of beverage consumption on hypertension risk.
Setting
Nine provinces in China, including Jiangsu, Hubei, Hunan, Guangxi, Guizhou, L...
Inconsistent findings have been discovered in studies examining the link between dietary selenium (Se) and sleep. Data were obtained from 17,176 people aged 20 and over who participated in the China Health and Nutrition Survey (CHNS) from 2004 to 2011. Face-to-face interviews were used to measure sleep duration in 2004, 2006, 2009, and 2011. To tra...
Background
Understanding the natural history of elevated blood pressure (BP) is important to determine the window for primary prevention of hypertension. The authors aimed to investigate the natural history of elevated BP and examine whether there were inflection points in BP trajectories preceding hypertension onset in Chinese adults.
Methods and...
Research on the relationship between vegetable consumption and stroke among the Chinese population is still rare. This study aimed to explore the association between vegetable consumption and stroke. Using data from the China Health and Nutrition Survey (1991–2018), we included 15,145 participants over 40 years old without stroke as the baseline. P...
Background
Considering that the previously developed mortality prediction models have limited applications to the Chinese population, a questionnaire-based prediction model is of great importance for its accuracy and convenience in clinical practice.
Methods
Two national cohort, namely, the China Health and Nutrition Survey (8,355 individual older...
Citations
... Iron deficiency and anemia prevalence in the country was estimated at around 20%, with higher rates observed in certain provinces and populations [58]. It is believed that the reasons for this situation in the presence of adequate supply rates are not only the inter-individual income and consumption gap but also the low bioavailability due to the co-ingestion of some substances, such as phytates from legumes and nuts, calcium from milk, tannins from tea, and medication [59,60]. Therefore, the national nutrition plan to supply security and nutrition education for the improved resident awareness tends to play an increasing role in the coordination of ironrelated health. ...
Procuring food enriched with diverse nutrients is pivotal for maintaining a robust immune system. However, the food system is now unprecedentedly globalized and faces challenges arising from climate change, pandemics, and political unrest. This study aims to illuminate the gap in exploring the adequacy and distribution equity of nutrition supplies in response to potential trade fluctuations and restrictions on agrifood within China’s local agriculture endowments. Also, it seeks to identify the role of trade in contributing to these indices. Accordingly, we analyzed the distribution of nutrients in agrifood categories from production to consumption and assessed the adequacy and distribution equity of corresponding available nutrition supply from the local food provision system in terms of meeting residents’ nutritional requirements, across China, and compared with those in the practical market. The local self-supply system showed that 12 out of 31 provinces have difficulty achieving an iron supply with 11% to 108% deficiencies. Except for iron, 52% (folate)–90% (vitamin B12) of agricultural output was available for diet provisioning nationwide. While food trade emerges as a crucial factor in enhancing secure and equitable nutrition supply, risks associated with micronutrient deficiencies necessitate careful consideration in current global circumstances. Our analysis explored a regional pool of nutrient information in supplements to the conventional food profile in China and could implicate better knowledge toward healthier food supplies and tailored improvements for achieving a resilient nutrition supply.
... Modifiable lifestyle factors such as nutritional status and physical activity, especially exercise, have been recognized as protective factors against cognitive decline [1]. An extensive amount of literature has underscored the link between nutritional status and cognitive decline [2][3][4][5][6][7][8][9]. Both cross-sectional [2][3][4] and longitudinal [5] studies from various populations consistently reported correlations between malnutrition or nutritional risks and higher levels of cognitive decline, whereas the dietary intake of nutrient-rich foods including tea [6], egg [7], fruits, milk, and yogurt [8,9] is associated with reduced risks of cognitive decline. ...
... An extensive amount of literature has underscored the link between nutritional status and cognitive decline [2][3][4][5][6][7][8][9]. Both cross-sectional [2][3][4] and longitudinal [5] studies from various populations consistently reported correlations between malnutrition or nutritional risks and higher levels of cognitive decline, whereas the dietary intake of nutrient-rich foods including tea [6], egg [7], fruits, milk, and yogurt [8,9] is associated with reduced risks of cognitive decline. Furthermore, intervention studies, implementing diverse dietary patterns, have demonstrated efficacy in attenuating the progression of cognitive deterioration [1,10,11]. ...
We aim to assess the relationship between nutrition status, physical exercise, and cognitive function and particularly examine how happiness modifies and mediates the relationship, among 699 seniors aged 60 and above in Shanghai, China. Linear regression models were used to validate the effects of nutrition and exercise on cognitive function and to test their interaction effects with happiness. When the interactions were significant, stratified analyses in sub-groups were conducted. Mediation effects of happiness were examined using two-step causal mediation models. We confirmed that better nutrition (p < 0.001) and exercise (p = 0.009) were significantly associated with less cognitive decline. Furthermore, the effects of nutrition and exercise on cognitive decline were significant in the unhappy (happiness < 20) (p < 0.001) and younger (age < 74) sub-groups (p = 0.015). Happiness partially mediated 11.5% of the negative association of cognitive decline with nutrition (p = 0.015) and 23.0% of that with exercise (p = 0.017). This study suggests that happiness moderates and partially mediates the effects of exercise and nutrition on cognitive status. The beneficial effects of exercise and nutrition were stronger in less happy or younger seniors. Future intervention studies are required to confirm this path relationship.
... 11 Based on the 14-y data from a national cohort study in China, consumption of > 4 cups of tea per day significantly reduced self-reported memory loss in older adults. 12 Studies from Singapore also reported that drinking 3 cups of tea per day can reduce the risk of depression. 13 , 14 In Y. Tian et al. addition to the reduction in anxiety symptoms in older adults when they had ≥15 y of regular tea drinking habits, 15 better health-related quality of life (HRQoL) was also observed in older adults in Singapore. ...
Background
The aim of this study was to explore the association between tea-drinking habits and health-related quality of life (HRQoL) in Chinese adults and the mediating effect of sleep quality in this association.
Methods
Data were derived from the 2020 Survey of Social Factors for Chronic Disease Prevention and Control among adults in Lishui District, Nanjing, Jiangsu Province, China. Tea-drinking habits were measured by participants’ self-report. The HRQoL was measured using the 12-item Short Form Health Survey. Multiple linear regression modelling and mediating effects modelling were used for analyses.
Results
Habitual tea drinking, frequent tea drinking (drinking tea 6–7 days per week), tea concentration and <10 g of tea per day were strongly associated with an increase in HRQoL among Chinese adults (all p<0.05). The association between tea-drinking habits and HRQoL among Chinese adults was more pronounced in the male population and in those ≥45 y of age (all p<0.05). Tea drinking habits may improve HRQoL in Chinese adults by enhancing sleep quality (all p<0.05).
Conclusions
Maintaining the habit of habitual tea drinking (6–7 days per week), in small amounts (<10 g tea per day) was conducive to improving HRQoL of Chinese adults by improving sleep quality.
... Extensive literature has underscored the link between nutritional status and cognitive decline. Cross-sectional studies from various populations including Canadian, Greek, Singaporean, and Chinese [1][2][3][4] consistently reported correlation between malnutrition or nutritional risks and higher level of cognitive decline, whereas dietary intake of nutrient-rich foods including tea [5], egg [6], fruits, milk, and yogurt [7,8], is associated with reduced risks of cognitive decline. Furthermore, intervention studies, implementing diverse dietary patterns, have demonstrated efficacy in attenuating the progression of cognitive deterioration [9][10][11]. ...
We aim to examine how happiness modifies and mediates the impact of physical activity and nu-trition on cognitive function among 699 seniors aged 60 and above in Shanghai, China. Linear regression models were used to validate the effects of nutrition and exercise on cognitive function, and to test their interaction effects with happiness. When the interactions were significant, strati-fied analyses in sub-groups were conducted. Mediation effects of happiness were examined using two-step causal mediation models. We confirmed that better nutrition (p < 0.001) and exercise (p = 0.009) were significantly associated with less cognitive decline. Furthermore, the effects of nu-trition and exercise on cognitive decline were significant in the unhappy (happiness < 20) (p <0.001) and younger (age < 74) sub-groups (p = 0.015). Happiness partially mediated 11.5% of the negative association of cognitive decline with nutrition (p = 0.015) and 23.0% of that with exercise (p = 0.017). This study suggests that happiness moderates and also partially mediates the effects of exercise and nutrition on cognitive status. The beneficial effects of exercise and nutrition were stronger in less happy or younger seniors. Future intervention studies are required to confirm this path relationship.
... Fifty-eight studies, which included 488,056 participants, investigated cognitive function components of ageing. Among these, cognitive function was assessed using the Telephone Interview for Cognitive Status-modified (TICS-m) [7,[26][27][28][29][30][31][32][33][34][35][36][37], the Mini-Mental State Examination (MMSE) [8,9,11,12,[38][39][40][41][42][43][44][45][46][47][48][49][50][51][52]59,61,65,73,77], the Montreal Cognitive Assessment (MoCA) [64,68,74,75], the Short Portable Mental Status Questionnaire (SPMSQ) [69,70], or the World Health Organization/University of California-Los Angeles Auditory Verbal Learning Test (AVLT) [71], or was evaluated by asking questions about walking capability, hearing/vision, memory, and decision-making ability [72]. Diagnoses of dementia were made in accordance with the Diagnostic and Statistical Manual of Mental Disorders [53][54][55][56]60,76]; the criteria of the LTCI certification [10,57,58,62,63]; or the Interna-tional Statistical Classification of Diseases and Related Health Problems, Tenth Revision (ICD-10) [67]; or were obtained from the National Health Insurance Database [66]. ...
... For individual foods, higher intakes of vegetables and their constituent nutrients [50,54,64,65,67,70], legumes [42], tea [8,34,66], milk and dairy [48,55], fresh red meat [47,74], nuts [31,51], and fish [32,60,62,66] were associated with a lower risk of cognitive impairment, cognitive decline, and dementia. For individual nutrients, a higher dietary total antioxidant capacity [45] and higher intakes of amino acids [61], riboflavin and folate [49,75], animal protein [33], unsaturated fatty acids, polyunsaturated fatty acids (PUFAs), and n-3 PUFA supplements [11,52,60,75] were associated with a lower risk of cognitive impairment, cognitive decline, and dementia. ...
Background:
Nutrition plays a key role in modulating the likelihood of healthy ageing. In the present study, we aimed to conduct a systematic review to assess the impact of nutrition on healthy ageing in Asia.
Methods:
The systematic review was registered in the International Prospective Register of Systematic Reviews database (CRD42023408936) and conducted based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The PubMed, Web of Science, and Embase databases were searched up to February 2023 without language restrictions. We included prospective cohort studies that evaluated the associations of intake of a single food or consumption of a single nutrient at midlife; adherence to various dietary patterns at midlife; and improved adherence to dietary patterns from mid- to late life with the likelihood of healthy ageing and its components.
Results:
Out of 16,373 records, we included 71 papers comprising 24 cohorts from Singapore, China, Japan, and Thailand. The healthy ageing components included cognitive function, physical function, and depression. The majority of studies supported the observation that the likelihood of healthy ageing and its components in late life was positively increased by a higher consumption of healthy foods, such as vegetables, fruits, fish, nuts, legumes, tea, milk, and dairy, at midlife, and also by greater adherence to dietary patterns with high diversity scores or high total antioxidant capacities. Furthermore, improved adherence to healthy dietary patterns from mid- to late life also increased the likelihood of healthy ageing in late life.
Conclusion:
Consuming healthy foods and adhering to healthy dietary patterns at midlife can promote the likelihood of healthy ageing. Moreover, improving diet quality from mid- to late life can still be beneficial.
... For example, because the weather in the north is much colder in winter, people may go to bed earlier, whereas people from the south tend to go to bed and wake up later. Some parts of China eat chili peppers as one of the main dishes, whereas other parts of the country drink a lot of tea [16,17], all of which have been previously demonstrated by our team to be related to cognition in the elderly. ...
Simple Summary
Sleep plays an important role in cognition and memory in older adults and elderly populations. Rapid ageing in low-and middle-income countries (LMICs), including China, comes with the great challenge of the increased prevalence of cognition decline and dementia, consequently leading to an increase in chronic disease burdens. However, most studies that investigate the association between sleep and cognition are carried out in high-income countries and are limited to cross-sectional studies, whereas 80% of the world’s older population is estimated to live in LMICs in 2050. To fill in the gap, we aim to examine the associations between sleep duration and cognitive functions and memory in older Chinese adults in 2004, 2006, and 2015, using the China Health and Nutrition Survey. We found a U-shaped relationship between sleep duration, cognition, and memory, with a short and long sleep duration being associated with a 23% and 47% increase in cognitive decline and 63% and 48% increase in poor memory, respectively. These associations were not modified by demographic features such as education, income, and urbanity. These findings confirmed the importance of maintaining a normal sleep duration for cognition function. Our results may implicate the need for potential prevention strategies in reducing cognition decline and dementia in other LMIC populations.
Abstract
We aimed to examine the associations between sleep duration and cognitive functions and memory in older Chinese adults attending the China Health and Nutrition Survey. A total of 7924 participants 55 years and older who reported their sleep duration and had a cognitive screen test in 2004, 2006, and 2015 were included in the analysis. Mixed-effects logistic regression models were used to assess the associations. A short sleep duration (≤6 h/day) and long sleep duration (≥10 h/day) were positively associated with a low global cognitive score (odds ratio—OR: 1.23, 95% CI: 1.01–1.50; OR: 1.47, 95% CI: 1.17–1.79, respectively). Both short sleepers and long sleepers had an increased risk of self-reported poor memory (OR: 1.63, 95% CI: 1.39–1.91; OR: 1.48, 95% CI: 1.25–1.74, respectively). No differences in the above associations were found for income, education, and urbanity. In conclusion, both the short and long sleep duration were associated with declined cognition and memory. Maintaining a normal sleep duration may aid in the prevention of cognitive function decline in older adults.
