Water Quality

How Do You Know If You’re Dehydrated? Signs Of Dehydration & Negative Effects On Your Health

4 min read

Did you know you can only survive a few days without water?

Water is life! Dehydration is death!

But before dehydration kills you, it’ll probably cause some nasty side effects…

So how do you know if you’re dehydrated?

Let’s take a closer look at the dangerous “D” word and how to avoid it.

ESSENTIAL TAKEAWAYS

Dehydration occurs when the body doesn’t have enough fluids to carry out its usual tasks.


Vomiting, diarrhea, fever and excessive sweating can all cause it.


Dehydration has many nasty side effects, including brain swelling, seizures, shock, kidney failure, coma, and even death!


A reverse osmosis (RO) system provides toxin-free water to  keep you hydrated.

What Is Dehydration & Being Dehydrated?

Being dehydrated is due to one very specific thing.

Did you know?...

Roughly 60% of the body is made up of, you guessed it… water! 

Most importantly, it’s required for cellular homeostasis and survival. 

In other words, it hydrates your cells and keeps them in tip-top shape. 

Dehydration happens when the body uses more fluid than it takes in. 

Your body without water is like a car without fuel – it simply can’t do what it was meant to do!

Chronic dehydration affects 75% of Americans. Even if you drink 8 hydrating drinks a day, you can still become dehydrated from caffeine, alcohol and a sodium-rich diet.

How Do You Know If You’re Dehydrated? Signs Of Dehydration & Negative Effects On Your Health Dehydration Effects

8 Signs You're Dehydrated

Has dehydration been dragging you down?

Here are the most common signs: 

1. Rapid Heartbeat

Not drinking enough fluids can have a negative impact on the heart.

Dehydration can cause cardiac symptoms, like heart palpitations, pounding, fluttering and irregular heartbeat.

According to one study, dehydration can damage blood vessels and alter blood pressure.

Dehydration can also stress the heart during strenuous exercise in hot weather, so make sure to drink plenty of water and take it easy on your precious heart.

2. Low Blood Pressure

You’ve probably heard about the dangers of high blood pressure, but did you know that low blood pressure can be bad too?

Low blood volume from dehydration can cause a dangerous drop in blood pressure. 

As a result, there isn’t enough of the good stuff, like oxygen, circulating in your capillaries, veins, arteries and heart. 

Studies show that this can be life-threatening, resulting in shock and even death. 

​​3. Tiredness

If you haven’t had enough fluids, you might feel more sluggish than usual. 

Why’s that? 

Because dehydration affects everything, especially your sleep. 

One study found that people who were properly hydrated slept longer than those who weren’t. 

Another study found that dehydrated athletes reported greater fatigue and decreased endurance. 

DID YOU KNOW?

Dehydration activates the body’s thirst response — meaning that if you're thirsty, you're already dehydrated!

4. Dark Urine

It might sound kind of gross, but checking the color of your pee is an easy way to find out if you’re dehydrated. 

If you’re dehydrated, your urine will be a darker color and you’ll “go” less often. 

This is your body’s way of conserving water. 

It doesn't have to be clear – but a pale yellow is a good sign that you’re getting enough fluids. 

5. Cracked Lips & Dry Skin

The two most common signs of dehydration? 

Decreased skin elasticity and dry skin and lips.

However, if you’re already drinking a lot of water, it could be a sign that something else is wrong, so get to the doctor for a check-up.

6. Migraines

Feel like your head’s in a vice? You could be dehydrated. 

Why does dehydration cause headaches?

One theory is that dehydration causes the brain’s blood vessels to stretch, resulting in a throbbing head pain. 

Luckily, studies show that drinking more water can help reduce migraines. 

7. Dizziness

Feeling dizzy and light-headed, especially after standing or sitting up quickly, is another sign you’re not getting enough fluids. 

The medical term is called orthostatic hypotension, and it happens due to a sudden drop in blood pressure when you stand up.

This is especially common in older folks, who are more prone to dehydration and low blood volume.

8. Short Attention Span

One Mississippi, two Mississippi, three... oh, look, a puppy!

Studies show that dehydration can strain your brain and make you easily distracted. 

For example, one 2019 study and another in 2021 found that it can damage short-term memory, concentration and mood. 

<strong>When was the last time you tested your tap water?</strong>

Toxins in local water systems should be tested at least once a year. Enter your zip code in the box below to get the latest test results for your neighborhood.

Negative Long-term Health Effects of Dehydration

What happens when you ignore dehydration for too long?

Serious side effects can include: 

  • Seizures
  • Brain swelling
  • Kidney failure
  • Shock
  • Coma 
  • Death

So, how can you reverse it? 

If it’s mild to moderate dehydration, you can combat it by drinking more fluids, but if it’s severe, you’ll need to see a doctor asap and get some IV fluids. 

So do yourself a favor and avoid it in the first place by drinking plenty of water. 

Bottoms up, buttercups!

Tips to Stay Hydrated

So drinking water isn’t your cup of tea, huh? 

Luckily, we have some tricks up our sleeve: 

  • Add flavor with infused fresh fruit, vegetables (cucumber, lemon) and herbs (ginger)
  • Make hydration a habit by downloading a water-drinking app
  • Cut the sugar by diluting your juice with water
  • Swap your soda pop for a fizzy water
  • Eat fruits and veggies that contain plenty water and electrolytes (like cucumber, celery and papaya)

You can also install an under-sink RO water system, which guarantees toxin-free water full of essential minerals. 
Click here to learn more.

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