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A new study recommends to people who like to drink tea too hot to let it cool slightly in order to avoid an increased risk of esophageal cancer.
In a study published in the National Journal of Cancer, researchers explain that tea lovers who drink at a temperature above 60 degrees Celsius in large amounts are almost twice as likely to develop squamous cell carcinoma in the esophagus as those who drink less, less than generally, after a follow-up lasted more than ten years.
"Drinking hot tea is generally very common in the world, and previous studies have suggested a link between hot drinks and the increased risk of esophageal cancer," said Dr. Farhad Islami, senior research scientist. American Cancer Society in Atlanta, Georgia.
The incidence of squamous cell carcinoma in the esophagus is the sixth leading cause of cancer deaths in the world.
The International Agency for Research on Cancer (IARC) of the World Health Organization has classified "overheated" drinks at more than 65 degrees Celsius among "probably the cause of cancer".
In this study, which began in 2004, researchers collected data on 50,000 adults living in the northeastern province of Jalastan, where high rates of esophageal cancer and an average 1,100 milliliters of black tea a day have been reported.
At the beginning of the study, researchers poured cups of tea during interviews with the participants, measured the temperature of the drink, and interviewed each person about their personal preferences for tea consumption and the time between their consumption. and in general for each of them.
In 2017, 317 participants were diagnosed with squamous cell carcinoma of the esophagus. Tea drinkers were more likely to have a tea temperature of 60 degrees Celsius (41%) than those who drank them at lower temperatures.
The percentage of those who prefer to drink tea is "very hot" about two and a half times compared to those who prefer it cold or hot. People who drank tea within two minutes of illness were 51% more likely to be sick than those who waited six minutes or more.
Overall, those who drank at least 700 milliliters of hot tea each day were 91% more likely to drink alcohol than those who drank less at lower temperatures.
"We do not ask people to stop drinking tea, but we recommend that you wait a while until they calm down before drinking," said Islami.
The researchers noted that the effect of hot tea consumption on the increased risk of the disease remained evident even after taking other factors at the origin of the disease, such as smoking and consumption of alcohol or opium, as well as other social and geographical factors.
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