4 Ways Alcohol Is Hurting Your Sleep

4 Ways Alcohol Is Hurting Your Sleep

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There are many folks who enjoy a drink or two after a long day at work, and why not? Many workplaces are stressful – deadlines, gossip, a demanding boss – all common complaints of people that spend 40-plus hours in a stress-laden environment.

Fortunately, a drink or two seemingly produces minimal effects on sleep quality. Dr. Irshaad Ebrahim, the medical director at The London Sleep Centre in the U.K, conclusively states – based on an accumulation of data – that alcohol consumption of up to two drinks will not significantly impair sleep quality.

Up to two drinks being the key phrase. Exceeding this limit will almost assuredly negatively affect sleep quality during the mid to late stages of sleep for a number of different reasons, which we’ll discuss.


The primary reason is that, to get a good night’s sleep, we must enter and remain in a state of REM – the most restorative sleep stage for our mental faculties. Without an adequate amount of REM sleep, our cognition is highly likely to be off-kilter.

Alcohol effectively obstructs the brain’s ability to achieve the REM state of sleep in larger quantities. Again, the higher the amount of consumption, the more disruptive alcohol is to this vital phase of sleep.


Here are 4 ways alcohol hurts your sleep:

1. Alcohol wakes us up

While booze may help us fall asleep faster, it also wakes us up during key phases of sleep. In a review of 20 different studies, scientists examined the effects of alcohol on 517 people in 38 different lab experiments.

The volunteers drank varying amounts of alcohol, from one to two, two to four and four or more drinks. Some studies were conducted as a one-night experiment while others spanned a few days.

The results were clear in every case: drinking alcohol helps shorten the time needed to fall asleep, and even increases deep sleep during the first part of the night. Afterwards, the participants were more prone to sleep disruption, including wakefulness.


2. It can cause heartburn

Anyone that is prone to heartburn will emphasize how badly it sucks. It’s that uncomfortable burning sensation coupled with stomach tightness that is particularly unpleasant.

Alcohol has the effect of loosening the sphincter muscle in the esophagus that prevents food from entering the stomach. Normally, this muscle is constrictive and prohibits stomach acid from flowing into the esophagus. However, too many drinks can cause this barrier to relax. Naturally, this leads to stomach acid entering the esophagus – creating that damnable burning sensation.

In other words: for a heartburn-free, sleep-inducing night, lay off that third glass of merlot.

3. It sends us to the bathroom

Not much else to say here, right? We can all attest to alcohol’s ability to send us B-lining to the nearest toilet. A scientific explanation isn’t really necessary, but it’s helpful in understanding why this is the case.


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Alcohol is a diuretic – an effective substance in ridding the body of liquid. Under normal conditions, the body is extremely apt at getting liquid out of the bladder before bedtime, which allows us to achieve the recommended six to eight hours of sleep. We also have an innate tendency to consume less liquid at night. Well, unless we insist on a well-deserved nightcap.

Since alcohol produces the effect of liquid removal from our bladder, and because it’s normally consumed within a short period before bedtime, it’ll often wake us up and send us to the bathroom. Notice that this is a double-edged sword – waking up in itself is counterproductive to regular sleep patterns. When combined with the potency of alcohol, not only are healthy sleep patterns disrupted, we’re more likely to arise to simply use the bathroom. Our sleep patterns are both voluntarily and involuntarily disturbed as a result.


4. It counteracts other sleep aids

For those of us with difficulty sleeping (raises hand), we’ll often rely on some form of sleep aid. If this is the case, consuming alcohol with an active sleep aid is a big no-no.

Alcohol and most sleep aids enhance the neurotransmitter GABA – the brain chemical responsible for calming neural activity. GABA also suppresses breathing and reduces heart rate. So, combining two agents – alcohol and sleep aids – that suppress breathing is not only disruptive to sleep, it can be potentially dangerous.


While many of the newer sleep medications are less prone to harmful interactions with alcohol, health professionals remain adamant that alcohol should not be combined with any sleep aid – prescribed or over-the-counter.


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