May 25 every year is World Stroke Prevention Day, which aims to raise awareness of stroke and related problems and prevent stroke. In 2019, The Lancet published an analysis of the causes of death of Chinese residents from 1990 to 2017, and found that the first fatality rate was stroke. Similarly, data from the “China Stroke Report 2019” show that in 2018 alone, 1.57 million people died of stroke in my country, accounting for 22.3% of the total mortality rate of Chinese residents. Coffee and tea are two of the most widely consumed beverages in the world. Morning coffee and afternoon tea constitute a day for many migrant workers . Coffee contains caffeine, a rich source of antioxidants and bioactive compounds. The tea containing caffeine, catechin polyphenols and flavonoids has neuroprotective effects, such as anti-oxidative stress, anti-inflammatory, anti-apoptosis, etc. Many previous studies have focused solely on coffee or tea to explore the individual health effects of the two, but few studies have discussed the combined effect of the two. In fact, coffee and tea consumption are closely related, with approximately 70% of people citing both coffee and tea. But what I didn’t expect is that drinking coffee and tea together has the effect of preventing stroke!
Source: Internet span>The team from Tianjin Medical University conducted a study on the combined effect of “coffee + tea”, the results showed that coffee and tea, whether drinking alone or together, can reduce stroke , The role of dementia risk, drinking 2-3 cups of coffee + 2-3 cups of tea a day can reduce the risk of stroke by 32% and the risk of dementia by 28%. The study was published in PLOS Medicine. 
Source: PLOS Medicine ) of 365,682 participants, who were followed up by researchers for up to 10-14 years. Of the 365,000 participants, 45.7% were male, ranging in age from 50 to 74 years old, with an average of 60.4±5.1 years. During a median follow-up of 11.35 years, 10,051 (2.8%) participants experienced stroke and 5,079 (1.4%) developed dementia. Among all participants, 16.29% reported drinking 0.5-1 cups of coffee and ≥4 cups of tea per day, the largest proportion; Second, 13.68% of the participants reported that they drank 0 cups of coffee and ≥4 cups of tea per day. Additionally, 44,868(12.27%) participants reported that they drank 2-3 cups of coffee and 2-3 cups of tea per day. Concurrent data analysis showed that coffee intake (cup/day) was associated with tea intake (r = +0.337, P < 0.001). 
Source: PLOS Medicine Participants who drank both coffee and tea were more likely to be older, male, white, former smokers, current drinkers, have a college degree, and have a high income than participants who drank neither coffee nor tea. 
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Source: PLOS Medicineresearch by scholars Coffee, tea, and coffee+tea consumption were associated with stroke, dementia, and post-stroke dementia.Coffee and tea were associated with stroke, dementia in multiple adjustment models The associations with symptoms were U-shaped (non-linear P<0.001). The data showed that coffee intake of 2-3 cups/day or tea intake of 3-5 cups/day, Or coffee and tea intakes of 4-6 cups/day were associated with the lowest hazard ratios (HRs) for stroke and dementia, both more or less are harmful rather than beneficial. 
Source: PLOS Medicine Drinking a combination of coffee and tea is better than drinking one or the other in reducing disease risk.Reduces stroke risk:Drinking 2-4 cups of coffee a day can reduce stroke risk by 8-12%, and drinking 2-4 cups of tea can reduce stroke risk 16% reduction, while 2-3 cups of coffee + 2-3 cups of tea per day significantly reduced stroke risk by 32%. 
Source: PLOS Medicinestrong Reduces the risk of dementia: Researchers have found that drinking 0.5-1 cups of coffee and ≥4 cups of tea a day can reduce the risk of dementia by 30%, Drinking 2-3 cups of coffee and 2-3 cups of tea per day was associated with a 28% lower risk of dementia. However, while the combination of coffee and tea intake was associated with a lower risk of vascular dementia, it was not associated with dementia due to Alzheimer’s disease. Reduces risk of dementia after stroke: Coffee and tea together are also linked to stroke associated with a lower risk of post-dementia. People who drank 0.5-1 cups of coffee and 2-3 cups of tea per day had a half (50%) lower risk of developing post-stroke dementia compared to people who didn’t drink coffee and tea. 
Source: PLOS Medicineafter correcting for confounding factors span>Participants who drank both coffee and tea had an 11%, 11%, 8%, 18% lower risk of stroke, ischemic stroke, dementia, and vascular dementia, respectively, compared with coffee or tea only %. It has also been shown that co-drinking coffee and tea is more effective in preventing disease than drinking coffee or tea alone. Those who love both coffee and tea should be “Double Chef Ecstasy”. For coffee drinkers, there are many types of coffee. Like instant coffee, freshly ground coffee, decaf, what’s the difference between them? What is the impact on the occurrence of the disease? Among coffee drinkers, 44.0% were accustomed to drinking instant coffee, 17.3% ground coffee, and 15.7% decaffeinated coffee. Data analysis showed thatinstant coffee and decaffeinated coffee did not differ significantly in their ability to reduce stroke risk, but ground coffee was associated with a 10% lower risk of stroke and ischemic stroke. For the risk of dementia, compared to instant coffee, ground coffee can reduce the risk of dementia, Alzheimer’s disease, and vascular dementia by 17%, respectively , 23%, 18%. Compared with decaffeinated coffee, instant coffee can also reduce the risk of dementia, Alzheimer’s disease, and vascular dementia by 15%, 19%, and 16%, respectively, and ground coffee can reduce dementia, Alzheimer’s disease, and vascular dementia. risk 26%, 33%, 26%. So, when it comes to choosing coffee: Ground coffee>Instant coffee>Decaffeinated coffee. In conclusion, this large prospective cohort study found:
1. Tea and coffee, either alone or in combination, are associated with a reduced risk of stroke, ischemic stroke, dementia, and vascular dementia;
< p>2. Drinking coffee and tea together has a lower risk of stroke and dementia than drinking coffee or tea alone;
3. Drink 2-3 cups a day Participants who received coffee and 2-3 cups of tea had an approximately 30% lower risk of stroke and dementia.
In conclusion, this study shows thatmoderate consumption of coffee and tea, either alone or in combination, is associated with lower Stroke is associated with dementia risk. If you want to drink beverages at ordinary times, you can choose coffee and tea as the first choice, which has a certain brain-protecting effect~*Note: The dosage unit in this article is cup. 1cup=150mL.
References:
Zhang Y, Yang H, Li S, Li WD, Wang Y. Consumption of coffee and tea and risk of developing stroke, dementia, and poststroke dementia: A cohort study in the UK Biobank. PLoS Med. 2021 Nov 16;18(11):e1003830. doi: 10.1371/journal .pmed.1003830. PMID: 34784347; PMCID: PMC8594796.
Writing | LILYMED, SwagppEditing| Swagpp
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