- German researchers have discovered an association between coffee and cardiovascular health.
- Caffeine has been found to improve the cells in the blood vessels, making them work like young cells.
- The researchers recommend 4 cups a day but warn about overdoing it as everyone’s caffeine tolerance varies.
Drinking up to four cups of strong coffee may result to a fit heart, particularly in older adults.
A group of German scientists, headed by molecular biologists Judith Haendeler and Joachim Altschmied, claims that they have found clues on how caffeine in coffee affects our cardiovascular health.
The scientists found that the cells inside our blood vessels improve by just a jolt of caffeine, in particular, by turning certain proteins inside the adults’ cells to work like young and agile cells. They studied caffeinated lab mice and dosed human tissues with caffeine. PLOS Biology published this research on Thursday.
“When you drink four to five cups of espresso, that seems to improve the function of the powerhouses of our cells, and therefore seems to be protective,” Altschmied told the Business Insider.
For years, researchers observed that people who consume coffee are less likely to die from all sorts of diseases, involving heart disease, stroke, or diabetes. Maybe the best proof yet for this comes from two huge studies: one of more than 400,000 people in the US by the National Institutes of Health, and another of more than 500,000 Europeans. The two studies discovered that consistent coffee drinkers were less likely to die from any cause than those who don’t drink regularly.
Coffee is also related to many other health advantages, involving a lower chance of liver disease (cirrhosis), certain kinds of cancer, dementia, Alzheimer’s and depression. Also, people who consume three to four cups a day are 19% less likely to die from heart disease.
Altschmied stated he hoped his new research would disprove the old suggestion that individuals with heart problems shouldn’t drink coffee. He insists that drinking of up to four shots of espresso daily, or its equivalent, may reduce the chances of heart attacks, particularly in people who are obese or prediabetic.
Green tea is a good alternative as it has the same levels of caffeine.
However, it is still essential not to overdo it as too much caffeine can make the heart beat faster and may result to other health problems.
The team warns that the research was not conducted on humans—only in human tissues and lab mice—and may not have the same outcome.
Altschmied also advised that it may not work for people who have cancer.
“Where people have a diagnosed tumor, we would say better take your hands off the coffee. But if you’re otherwise healthy, it will not harm you, and it might help your heart and circulatory system stay better functional for a longer time,” he said.
Source: Business Insider