Coffee has amazing effects on mental health
Coffee has amazing effects on mental health. A new study published in “The British Medical Journal” (Poole et al., 2017) found that moderate coffee consumption is associated with a decrease in the risk of depression and a decrease in Parkinson’s disease and dementia.
Not only that, a review of over 200 studies found that drinking 3 to 4 cups of coffee a day has many other benefits, including lower levels of heart disease and lower risks of certain cancers, diabetes, and liver diseases.
The authors of the study wrote that even after adjusting for smoking and many exposures, coffee consumption was always associated with a lower risk of Parkinson’s disease. Decaffeinated coffee is associated with a lower risk of Parkinson’s disease, but it is not significant. Coffee consumption is consistent with a reduction in the risk of depression and cognitive impairment, especially for Alzheimer’s disease.
Coffee is also associated with a lower risk of several cancers:
- Prostate cancer
- Endometrial cancer
- skin cancer
- Liver cancer
People who drink coffee suffer from type 2 diabetes and have a lower risk of gallstones and gout; coffee has a significant effect on liver diseases such as cirrhosis. On the other hand, the evidence for drinking decaffeinated coffee is not so strong.
Professor Eliseo Guallar, a public health expert, wrote in relevant comments: Should doctors recommend drinking coffee to prevent disease? Should people start drinking coffee for health reasons? The answer to these two questions is “no”.
But if you already drink coffee, how much should you drink? Professor Guallar explained: “The lowest risk of disease is related to drinking three to five cups of coffee a day. Higher intakes may reduce or reverse the potential benefits, both in individual studies and in meta-analysis. Large uncertainty. Therefore, the conclusion on the safety of coffee should be limited to a moderate intake, which is being less than 400 mg of caffeine per day (about four or five coffee beverages).
Poole R, Kennedy OJ,Roderick P, et al. Coffee consumption and health: umbrella review of meta-analyses of multiple health outcomes[J]. bmj, 2017, 359: j5024.