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Does Drinking Alcohol Warm Your Body?
飲酒驅寒？這可能只是你的錯覺……
The characteristics of flushed cheeks and the occasional sheen of sweat on someone who’s been imbibing certainly suggest that alcohol has an effect on body temperature, but when you drink an alcoholic beverage, does it really warm you up?
喝完酒后，臉頰泛紅，微微出汗，確實給人一種暖和起來的感覺。然而，喝酒真能暖身嗎？
Alcohol is a vasodilator. It causes your blood vessels to dilate, particularly the capillaries just under the surface of your skin.
酒精會引起血管擴張，尤其是皮膚下的毛細血管。
When you have a drink, the volume of blood brought to the skin's surface increases, making you feel warm.
喝酒后，輸送到皮膚表面的血液量增加，從而讓人感受到熱量。
That dilation is why slightly or exceedingly intoxicated people look flushed.
也正是因為血管的擴張，所以人們喝酒后會面色潮紅。
This overrides one of your body’s defenses against cold temperatures: Constricting your blood vessels, thereby minimizing blood flow to your skin in order to keep your core body temperature up.
但人體面對低溫氣候時，會天然地選擇收縮血管，減少流向皮膚的血液，以保持身體的核心體溫。而喝酒帶來的血管擴張卻阻礙了人體自然的防御措施。
Someone enjoying a drink in the cold may feel warmer from the extra blood warming their skin, but that blood will rapidly cool thanks to the chill in the air.
在冬天小酌一杯，或許會因為額外輸送來的血液而讓皮膚變暖，達到驅寒的目的，但冷空氣會迅速使血液冷卻下來。
The warmth caused by blood rushing to the skin will also make them sweat, decreasing their core temperature even further.
血液涌向皮膚，帶來熱量，讓人開始流汗，更進一步降低核心溫度。
Compounded with the cognitive effects of alcohol, serious complications can arise.
加上酒精對人的認知能力的影響，情況會變得更糟。
The rapid drop often occurs without the drinker realizing it, because their skin will still feel fairly warm, which makes it doubly dangerous to drink alcohol in extremely cold weather.
因為皮膚仍然保持著溫度，喝酒的人甚至根本意識不到自己的體溫正在急速下降，這讓在冬天飲酒變得更加危險。
When you shiver, your muscles tighten and relax over and over again in a short amount of time. The energy that it takes to make your muscles shiver gives off heat, keeping your body a little warmer than it would otherwise be.
發抖會讓肌肉在短時間內不斷收緊和放松，相較于待著一動不動，這會促使肌肉運動而產生熱量，讓人感到溫暖。
But, drinking alcohol in chilly weather reduces the body’s ability and tendency to shiver, taking away yet another method your body uses to help keep warm when it is cold.
在冬天喝酒則會降低身體的調節能力，抑制顫抖的本能，讓人在寒冷時無法保持溫暖。
本文轉載自中國日報網，如有侵權，請聯系我們刪除。
