- 专家建议女性每天将酒精摄入量限制为每天喝一杯，而男性每天将酒精限制为两杯饮料。
- However, researchers say that even a single drink on average per day can decrease brain volume over time.
- Their study showed that a 50-year-old who drinks a pint of beer or a glass of wine a day effectively ages their brain by 2 years.
- 专家指出，较重的饮酒对脑大小有更大的影响。
A drink a day could shrink your brain away, a new study suggests.
酗酒一直与changes in the brain. However, researchers from the University of Pennsylvania have found that even light to moderate drinking — as little as a glass of beer or wine daily — is associated with reduced brain size and structure.
研究人员警告说，这种变化可能是认知障碍的警告信号。
研究人员的
例如，根据《自然通讯》杂志上发表的发现，一名50岁的年轻人平均每天喝一品脱啤酒或一杯葡萄酒，每天有效地衰老两年。
And those who consume an average of 4 drinks daily had brains that were 10 years “older” than those who did not drink.
“The fact that we have such a large sample size allows us to find subtle patterns, even between drinking the equivalent of half a beer and one beer a day,” said吉迪恩·殿，该研究的通讯作者以及宾夕法尼亚大学沃顿大学学校的教职员工。
The findings suggest that even drinking at levels considered “safe” in government guidelines may not be benign, researchers said.
例如，美国国家酒精滥用与酒精中毒研究所（NIAAA）设置
“我们对什么是安全饮酒水平的推定不足。”亨利·克兰兹勒博士，一名研究合着者，宾夕法尼亚大学佩雷尔曼医学院成瘾研究中心主任。“鉴于我们的发现，NIAAA限制可能比应有的限制要高。”
饮酒水平低的变化很小 - 从零到一个酒精单位或每天平均半饮料并没有显着改变大脑的体积。但是，随着消费每天或更高的饮料，大脑中的灰色和白色物质都被明显降低。
“It gets worse the more you drink,” saidRemi Daviet，威斯康星大学麦迪逊分校的研究合着者和助理教授。
“If you limit your focus to the brain, it’s probably not all that concerning if someone is having a drink a day versus half a drink,” said Kranzler. “As it gets above that, the risk gets more substantial.”
“I’m a lover of good wine,” Kranzler added. “These findings have led me to rethink [how much I drink]. I didn’t welcome this news, but I’d rather have my brain.”
研究人员控制了可能偏向结果的各种因素，包括年龄，身高，左手和右手，性别，吸烟状况，社会经济状况，遗传血统，居住县，以及 - 脑数量数据 - 总体数据尺寸。
Future research will look at whether the brain changes are permanent or related to binge drinking or general alcohol consumption rates.
纳夫说：“我们很好奇每天喝一杯啤酒是否比一周中不喝酒要好，然后在周末七个喝啤酒。”“有证据表明，大脑的暴饮暴食更糟，但我们还没有仔细观察。”
Alcohol use reduces brain volume by causing brain cells and cells in their connective tissue to expel water, saidJames Giordano，博士，华盛顿特区乔治敦大学医学中心的神经病学和生物化学教授
他告诉Healthline：“我们看到的是一种系统性的干燥效果，但数量损失并不意味着功能丧失。”雷竞技app官网“这并不意味着一杯对您有害。但是，饮酒的重复或大量消费将产生有问题的影响。”
克兰兹勒说，虽然酒精的干燥作用可能是研究中观察到的一些脑损伤的根本原因，但研究人员还观察到白质完整性的变化与脱水有关。
佐丹奴说，关于喝“杀死脑细胞”的古老说法并不十分准确，但它会破坏他们的功能。”
