A study conducted in the United States found a link between drinking coffee and increased longevity. While the researchers did not find a direct causal relationship between drinking coffee and increased longevity, they did find a link between coffee drinking and lower rates of heart disease, dementia, and other health conditions. However, the study was observational, which means that cause and effect relationships can’t be determined. Nevertheless, the researchers did control for other factors, including smoking status and diet, which could contribute to the results.
Mendelian randomization studies explain only a small proportion of the variance in coffee consumption
Mendelian randomization is a method that uses genetic variation to identify associations between exposure and outcome. Developed in the late eighteen hundreds, it has been applied to many fields, including cancer research and familybased design. It is useful because it reduces the effects of reverse causation and confounding, two problems that can obscure results from epidemiological studies.
The study’s researchers used genetic instruments to examine associations between coffee consumption and a number of health outcomes, including type 2 diabetes, cardiovascular disease, Alzheimer’s disease, and stroke. In addition, they examined associations between coffee consumption and MRI markers of cerebral small vessel disease and brain volume. The researchers used twelve single nucleotide polymorphisms (SNPs) as genetic instruments, and four SNPs from an independent sample.
The study excluded participants with incomplete data. However, the authors of the study did note that coffee consumption and increased longevity are associated only with a small number of genetic variants. Despite these limitations, the results remain compelling and demonstrate that the association between coffee consumption and longevity is real and significant.
Polyphenols in coffee are linked to decreased risk of heart disease
Researchers conducted a study in which participants were asked how often they drank coffee and the type they preferred. They found that those who drank at least two cups of coffee a day had a lower risk of death from all causes.
This study used data from the UK Biobank, a large biomedical database, to find a connection between drinking coffee and longevity. It found that people who drank two to three cups a day had a lower risk of developing cardiovascular disease, heart failure, and irregular heartbeats. However, drinking one to two cups of coffee a day did not reduce the risk of cardiovascular or digestive disease.
Several biologically active components found in coffee appear to be responsible for the positive association between coffee drinking and longevity. Although caffeine is the most widely known, coffee contains more than 100 other biologically active compounds. These non-caffeinated components likely contribute to the beneficial associations between coffee drinking and longevity and reduced risk of cardiovascular disease.
Lower rates of cardiovascular disease
Researchers have shown that drinking coffee is linked to increased longevity and lower rates of cardiovascular disease. However, the findings are subject to some limitations. For example, the study’s researchers assumed that the group that consumed coffee was similar to the group that did not consume coffee.
The study found that drinking two to three cups of coffee a day was associated with a lower risk of mortality. In addition, drinking coffee did not increase the risk of heart rhythm disorders like atrial fibrillation or atrial flutter. People who consumed two to three cups per day were 20 percent less likely to die.
Another study in the European Journal of Preventive Cardiology found a correlation between drinking coffee and fitla reduced rates of cardiovascular disease. However, the researchers did not go into detail on the causes of the increased risk.
Decreased risk of dementia
Drinking coffee and tea may help protect the brain and promote longevity. These beverages contain powerful antioxidants. These compounds are known to protect brain cells from injury and reduce inflammation. They also support learning and memory. In addition to lowering the risk of dementia, coffee and tea have several other benefits for the brain.
Researchers from Edith Cowan University conducted a study involving 200 Australians over a decade. They found a link between higher coffee intake and reduced risk of mild cognitive impairment, which often precedes Alzheimer’s. However, the study did not determine the cause of the association between coffee consumption and dementia.
In addition to reducing dementia, researchers found that coffee may improve executive function abilities, such as planning, attention, and self-control. It also appears to reduce the buildup of amyloid proteins in the brain, which are thought to be precursors to Alzheimer’s disease. However, more research is needed to determine whether drinking coffee helps protect the brain from dementia. In the meantime, drinking coffee may provide a fun and enjoyable way to protect the brain and reduce the risk of dementia.