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How a Lack of Quality Sleep Causes Dehydration

It’s not unusual to wake up craving a glass of water or two. But if you regularly feel dehydrated in the mornings, (and this feeling tends to linger throughout the day), then it might be a symptom of a bad night’s rest.


A Study Showing Lack of Sleep Causing Dehydration

Penn State University conducted a recent study and found that people who get six hours of sleep per night as opposed to eight hours of sleep are much more likely to wake up dehydrated. This is due to chemical changes in the body that occur with a lack of rest.

The researchers reviewed more than 20,000 adults, and conducted a survey that determined their sleeping habits. The participants also provided urine samples, which scientists then analyzed for the biomarkers of dehydration.

The study found that adults who only received around six hours of sleep per night were up to 59% more likely to be dehydrated during the day than folks who got the recommended eight hours of rest.

The cause, the study found, was likely due to an interruption of the body’s production of a hormone which helps promote hydration. The hormone, formally known as vasopressin, is released in the body during the day or nighttime. But it is basically produced at its highest levels during the later sleep cycles.


What Does Being Dehydrated Really Mean?

The researchers recently published their findings in the journal “Sleep”. And they later said in media interviews that while you can certainly fix dehydration with extra water in the mornings, it’s a problem you shouldn’t necessarily overlook.

Regular dehydration can affect a person’s mood, physical performance, and mental processes. But these side effects can actually worsen over time.

In addition, adults who suffer from dehydration may also experience or note the following symptoms:

  • Dry or blotchy skin
  • Feelings of dizziness
  • Quicker, rapid heartbeat
  • Dark circles or sunken eyes
  • Lack of energy
  • Increase in confusion and irritability
  • Quicker or rapid breathing
  • Dark urine
  • Fainting


How OSA Relates to Dehydration

Keep in mind, too, that even if you are getting the appropriate amount of sleep on a nightly basis, you may not be getting quality rest due to a sleep-related medical condition like obstructive sleep apnea (OSA).

With OSA, your body jolts your brain awake multiple times per night to restart the breathing process during periods of apnea. As a result, it’s hard if not impossible to reach those deeper levels of sleep when we produce the hydration hormone at its highest amounts. And this then leads to an increase in the risk of dehydration when you first wake up.

So look for symptoms of OSA like loud snoring or excessive daytime sleepiness. And keep an eye out for regular signs of routine dehydration as well to maximize your chances of catching a potential sleeping problem. At-home diagnosis kits are readily available if you think that OSA may be interfering with your sleep.

By paying attention to the signs of an issue with the quality of your rest, and seeing a sleep specialist, you can keep issues like dehydration at bay during your waking hours.

For more information about how we can help, contact us today and get back to feeling well-rested and hydrated!

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How a Lack of Quality Sleep Causes Dehydration
Feeling thirsty in the morning? It could be due to a lack of rest! A recent study examined the link between sleep and dehydration.