The habit of drinking coffee can affect your lifespan, a new study finds.

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Over the past hundred years, people have been struggling to find the secret of longevity, in fact, do not have to look so hard! Because the secret to longevity is in your cup: studies have found that people who drink one cup of coffee a day are less likely to die prematurely.

In the study, the researchers analyzed survey data from 520000 people from 10 European countries, including the frequency and amount of coffee they drank, and tested their liver and metabolic function, as well as their risk of heart disease.

They found that those who drank the most coffee per day drank an average of 855 milliliters and had a 12% lower risk of dying from disease than those who did not drink coffee during the 16-year follow-up.

The decrease in premature deaths seems to be mainly related to the sharp decline in deaths from digestive diseases, including liver-related diseases. Those who drank coffee had a 59% lower risk of dying from digestive tract disease than those who did not drink coffee. Those who drink coffee regularly have lower levels of glutamic pyruvic transaminase. Glutamic pyruvic transaminase is an important marker of liver disease. When the glutamic pyruvic transaminase level rises, it indicates liver injury or liver function disorder.

The researchers also found that caffeine in coffee may also be related to how long people live. This may be because caffeine in coffee can reduce the formation of scar tissue in the liver. And coffee itself may help reduce fat accumulation and inflammation, thereby preventing the formation of fatty liver.

A cup of coffee a day is a microcosm of the lives of many office workers, but there are always many people around you who advise you to drink less coffee. In fact, drinking a moderate amount of coffee is not only safe, but also can protect your health. Another study found that drinking three cups of coffee a day can reduce the risk of prostate cancer in men. The researchers followed 7000 people and found that those who drank at least three cups of coffee a day had a 53 per cent lower risk of breast cancer.

The researchers also tested the effect of coffee extract on prostate cancer cells. It was found that caffeinated coffee could significantly reduce the proliferation and metastasis of cancer cells.

There are a lot of health benefits of coffee here, but that doesn't mean you can drink coffee unbridled and unrestrained. Adults can limit their coffee consumption to about four or five cups a day. Drinking too much may increase other symptoms of physical discomfort, such as headache, nausea, vomiting, anxiety, dizziness and so on.

People who don't sleep well had better not drink coffee after four o'clock in the afternoon, because that may affect the quality of sleep. It's best to have coffee in the morning, but remember not to have an empty stomach.