血液浓度（bac）如何损害您的身体和大脑

血液酒精浓度（BAC）是在饮酒后在血液中的酒精百分比的测量。您的BAC，而不是您消耗的精确量，将决定酒精对您的影响。在所有国家中，驱动的法律限制是下面的任何数字.08。

随着BAC的增加，水平也是如此与酒精有关的障碍你会经历。呼气亭赋予快速成果，常常被怀疑是个人的警察使用driving while drunk，它与测量血液中的酒精量并不准确。

How BAC Is Calculated

为了计算BAC，血液中的醇的量在每100毫升（ml）血液中以毫克（Mg）醇计量。它通常表示为诸如0.08或0.15的小数。

例如，BAC为0.10％，意味着个体的血液供应含有每1000份血液的一部分酒精。

How BAC Affects Impairment

The Centers for Disease Control and Prevention provides the following chart which illustrates how alcohol consumption and BAC can impact behavior, judgment, physiology, and driving ability.

BAC	标准饮料当量	典型效果	Predicted Effects on Driving
0.02%	〜2杯酒精饮料	一些判断，放松，体弱的身体温暖，情绪改变	Decline in visual functions (rapid tracking of moving target) and ability to perform two tasks at the same time (divided attention)
0.05％	〜3次酒精饮料	Exaggerated behavior, loss of small-muscle control (e.g., focusing your eyes), impaired judgment, lowered alertness, release of inhibition	减少协调，减少跟踪移动物体的能力，难以转向，减少对紧急驾驶情况的响应
0.08％	~4 alcoholic drinks	Poor muscle coordination (e.g., balance, speech, vision, reaction time, hearing), difficulty detecting danger, impaired judgment, self-control, reasoning, and memory	浓度损失，短期记忆损失，速度减损，减少信息处理能力（例如，信号检测，视觉搜索），感知受损
0.10%	~4 alcoholic drinks	清除反应时间和对照的恶化，言论剧烈，协调不良，思维放缓	适当地减少维护车道位置和制动的能力
0.15%	〜7次酒精饮料	远远较少肌肉控制比正常，呕吐的潜力，重大失去平衡	车辆控制的大幅损害，关注驾驶任务，以及视觉和听觉处理

一种标准饮料is equal to 14 grams (0.6 ounces) of pure alcohol. Generally, this amount of pure alcohol is found in:

• 12 ounces of beer (5% alcohol content)
• 8 ounces of malt liquor (7% alcohol content)
• 5盎司的葡萄酒（12％酒精含量）
• 1.5 ounces or a “shot” of 80-proof (40% alcohol content) distilled spirits or liquor (e.g., gin, rum, vodka, whiskey)

Your blood alcohol level results may be given in different ways, including the percentage of blood alcohol content (BAC). Typical results include:

• Sober:0.0% BAC
• Legally intoxicated:。08% BAC
• Very impaired:。08–0.40% BAC. You may have difficulty walking and speaking. Other symptoms may include confusion, nausea, and drowsiness.
• 一种t risk for serious complications:一种bove .40% BAC. An individual with this blood alcohol level may be at risk for coma or death.

血液酒精测试只在您的最后一次饮品后的6至12小时内。如果您涉及您的结果，您可能希望与医疗保健提供者和/或律师交谈。