Drinking makes you feel less pain: proven fact or old wives’ tale?

By Seriously Science | May 15, 2017 6:00 am

Before the advent of anesthesia, patients undergoing surgery were often given copious amounts of alcohol to help make them more comfortable. But is there any scientific proof that alcohol can actually dull pain, or is the person simply too drunk to care? Surprisingly, previous studies on this topic have been mixed, so these researchers performed a meta-analysis to get to the bottom of the matter. By systematically reviewing 18 studies on over 400 subjects, they found that yes, alcohol not only dulls pain, it also increases pain tolerance. How much alcohol does the trick? A blood alcohol content (BAC) of 0.08% (legally drunk, 3-4 drinks) produces a statistically significant reduction in pain intensity and an increase in pain threshold, and increasing BAC augmented these levels even further. Something to consider the next time you have to perform surgery in the 18th century. Cheers!

Analgesic Effects of Alcohol: A Systematic Review and Meta-Analysis of Controlled Experimental Studies in Healthy Participants

“Despite the long-standing belief in the analgesic properties of alcohol, experimental studies have produced mixed results. This meta-analysis aimed to clarify whether alcohol produces a decrease in experimentally-induced pain and to determine the magnitude of any such effect. PubMed, PsycINFO, and Embase databases were searched from inception until April 21, 2016 for controlled studies examining the effect of quantified dosages of alcohol on pain response to noxious stimulation. Eighteen studies involving 404 participants were identified providing alcohol versus no-alcohol comparisons for 13 tests of pain threshold (n = 212) and 9 tests of pain intensity ratings (n = 192). Random effects meta-analysis of standardized mean difference (SMD) provided robust support for analgesic effects of alcohol. A mean blood alcohol content (BAC) of approximately .08% (3–4 standard drinks) produced a small elevation of pain threshold (SMD [95% CI] = .35 [.17–.54], P = .002), and a moderate to large reduction in pain intensity ratings (SMD [95% CI] = .64 [.37–.91], P < .0001), or equivalently, a mean reduction of 1.25 points on a 0- to 10-point pain rating scale. Furthermore, increasing BAC resulted in increasing analgesia, with each .02% BAC increment producing an increase of SMD = .11 for pain threshold and SMD = .20 for reduced pain intensity. Some evidence of publication bias emerged, but statistical correction methods suggested minimal impact on effect size. Taken together, findings suggest that alcohol is an effective analgesic that delivers clinically-relevant reductions in ratings of pain intensity, which could explain alcohol misuse in those with persistent pain despite its potential consequences for long-term health. Further research is needed to corroborate these findings for clinical pain states.”

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CATEGORIZED UNDER: ethanol, told you so
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  • OWilson

    Yeah, ingested chemicals can do that!

    I did my own informal study, Friday night!

  • Cliff Clavin

    I treated a guy who broke his arm at the beginning of a 30 day binge. As long as he kept drinking it didn’t hurt. The x-ray showed that all the sharp fragments had been worn off. Pretty amazing. He wanted something for the pain so I offered him a fifth of whiskey, his drink of choice.

  • Noah

    Anyone who has used alcohol for physical or emotional pain doesn’t need a study. They know already that it works. If you injure yourself drunk, you often don’t notice until the next day. There was a period of 6-8 months in 2009/2010 when I used alcohol to self medicate for intense emotional pain I was in over something that happened. It helped me a lot. I was in agony, and I would pour myself a cold glass of fine beer (I particularly remember Aventinus Weizen-Eisbock) and after half a glass the relief was like getting oxygen again after suffocating. It was so badly needed. I view my drinking during this period as justifiable. It really was medicine that took me away from deep suffering when that’s what I needed most. I can’t justify my drinking in the same way now, although I still struggle, but during that time, it was deeply helpful.

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