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回顧星期天LBS - 科學研究相關時事趣聞 All about 2022 scientific research

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Topic: About scientific research - Certain Junk Foods Could Be Messing With Your Brain’s Appetite Control, Study Finds

Emerging evidence in humans suggests a typically Western high-fat, high-sugar ’junk food’ diet can quickly undermine your brain’s appetite control.
在人類中新發現的證據顯示，含有高脂高糖「垃圾食物」的典型西方飲食，可以快速破壞大腦對食慾的控制。

After indulging in a week-long binge of waffles, milkshakes and similarly rich foods, researchers in Australia found young and healthy volunteers scored worse on memory tests and experienced a greater desire to eat junk food, even when they were already full.
狂吃鬆餅、奶昔和類似的高脂食物一週後，澳洲研究人員發現，年輕健康的志願者在記憶力測試中成績欠佳，而且對垃圾食物更有食慾，甚至在吃飽之後還想吃。

The findings suggest something is amiss in the hippocampus - a region of the brain that supports memory and helps to regulate appetite. When we are full, the hippocampus is thought to quieten down our memories of delicious food, thereby reducing our appetite.
研究結果顯示問題出在海馬體，這個區域在大腦中支援記憶力，協助調節食慾。我們吃飽之後，海馬體被認為會使美食記憶不再活躍，從而降低食慾。

When it’s disrupted, this control can be seriously undermined.
當海馬體受到擾亂，對食慾的控制也會受到嚴重破壞。

Over the years, extensive research on juvenile mice has found the function of the hippocampus is very sensitive to ’junk food’ , but this has only recently been observed in young and healthy humans.
近年來對幼鼠進行的廣泛研究發現，海馬體對「垃圾食物」很敏感，但最近才在年輕健康的人群中發現這一問題。

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Topic: Squatting or kneeling is better for your posture than sitting all day, anthropologists claim 人類學家：蹲姿或跪姿比坐一整天來得好

Resting postures such as squatting or kneeling may be better for health because they require more muscle activity than sitting on a chair, researchers claim.
研究人員聲稱，蹲或跪這類休息姿勢也許更有益於身體健康，因為它們比坐在椅子上需要更多的肌肉活動。

The findings are based on data gathered from a hunter-gatherer population in Tanzania who wore devices that measured physical activity as well as periods of rest.
這些發現是根據從坦尚尼亞一個狩獵採集部落收集來的數據，這個部落的人佩戴裝置來測量他們的體力活動和休息時間。

Anthropologists from the US found that despite being sedentary for almost 10 hours each day, equivalent to clocking a shift in the office at the desk, the Hazda people appeared to lack the markers of chronic diseases associated with long periods of sitting.
美國的人類學家發現，儘管哈茲達部落的人每天靜止不動的時間將近10個小時，相當於在辦公桌前上一天班，但他們似乎並未出現久坐帶來的慢性病跡象。

They believe this is down to the ‘active rest postures’ used by the tribe.
他們相信，這歸結於該部落使用的「主動休息姿勢」。
Source article: https://features.ltn.com.tw/english/article/paper/1368761 ; https://features.ltn.com.tw/english/article/paper/1367176

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Topic: Aboriginal canoe sets out on voyage to Japan for research

An Aboriginal Amis canoe is set to sail from Taiwan’s Taitung County to Japan’s Yonaguni Island some time between Monday and July 13. Organized by Taiwan’s National Museum of Prehistory and Japan’s National Museum of Nature and Science (NMNS), the voyage is part of the NMNS’ research on people’s movement from Taiwan to Japan in ancient times.
一艘原住民阿美族的獨木舟，預計在週一至七月十三日間，從台灣的台東縣航向日本的與那國島。該活動是由國立台灣史前文化博物館，及日本的國立科學博物館合辦，此航行是科博館研究的一部分，旨在探討古代人們從台灣到日本的遷徙活動。

According to archaeologists, some of the early inhabitants of Japan most likely traveled from Taiwan to the Ryukyu Islands on similar wooden vessels during the Paleolithic, about 30,000 years ago. The canoe will have to cross the Kuroshio Current (the Black Current) and travel around 205km to Yonaguni Island, Japan’s west

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Published on 2 years, 7 months ago