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Study finds people don’t require as much water as once believed
MONDAY, DECEMBER 05, 2022
A famous health tip says you’d better drink eight glasses of water (about two litres) a day. However, the results of a new study suggest that fewer are needed.
An international group led by scientists at the Shenzhen Institute of Advanced Technology in China found that the average daily water intake of a man in his 20s should be 1.5 to 1.8 litres, while it should be 1.3 to 1.4 litres for a female in the same age group.
The study published recently in the journal Science described, for the first time, a set of equations to predict human water turnover, an indicator reflecting the amount of water used by the body each day.
The researchers investigated 5,604 participants from the ages of 8 days to 96 years, and from more than 20 countries, using isotope-tracking methods.
They have found that a man aged 20 to 35 consumes 4.2 litres of water each day, while a woman aged 30 to 60 consumes 3.3 litres, with the water requirements dropping as he or she ages.
Since the metabolism and water exchange on the skin can provide 15 %, while food and drinking respectively contribute half of the remaining 85 %, people are encouraged to drink less than 45 % of the total daily turnover, according to the researchers.
“The majority of people perhaps don’t have to drink eight glasses of water a day,” says Zhang Xueying, co-first author of the paper and an assistant research fellow at the SIAT.
The total water input and output vary according to multiple factors, including body size, physical activity, air temperature, humidity and altitude, according to the study.
“The equations can be applied to individuals around the world,” says Zhang.
“Just input their basic physiological indicators and the temperature and humidity they live in.”
However, people living in countries with a low human development index have higher water turnover than people in high-HDI countries, she adds.
The study marks the first step towards a personalized prediction of water requirements, says the paper’s co-corresponding author John Speakman who also works at the SIAT.
Reuters
A giant six-metre-tall Brachiosaurus model at the Saurus Coffee and Gallery entrance. – Photo courtesy of Saurus Coffee and Gallery
Pork jowl stir-fried with vegetables and roots provide lots of nutrition and vitamins. Photo bachhoaxanh.vn
Grilled pork jowl is both tender and soft. Photo banhran.vn
Khao Kluk Kapi, or rice mixed with Thai fermented shrimp paste, served with assorted condiments, is one standout item on the menu. The history of the dish apparently dates back a 100 years to the reign of King Rama V while he was abroad on an official visit. The restaurant explains, “At Khaomali, this dish is served with unusual ingredients as part of the condiments.” Ham, surely, is not a Thai ingredient but the restaurant explains: “While on his visit, the King craved for food cooked by his grandmother and this dish came to his mind. The next day, he started to cook this dish with the Thai ingredients that he had taken along with him on the trip, while adding local ingredients found in the foreign land. After the meal, the king said, ‘So easy to devour, it helps remove the feeling of having heavy hard bread and meat going down my throat’.”
She said that the company aimed to change people’s vision of the insurance company with brand communication involving the five senses of sight, taste, smell, hearing, and touch under the concept of “Experiences of Celebrate living”.
Pavarisa said, “A key principle of the brand experience strategy that we have continued to implement over the past year is to build brand awareness of FWD Insurance by collaborating with lifestyle leaders so that everyone can fulfil their happiness goals.”
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