What Is Hydration on a Cellular Level and Why Is It Important? (2024)

What Is Hydration on a Cellular Level and Why Is It Important?

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If the fluids you drink aren't hydrating your cells, they're not doing as much as you think.

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FEB. 26, 2024 4 MINUTE READ
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We all know how it feels not to be properly hydrated. From experiencing thirst to feeling sluggish to noticing that you don't need to urinate as frequently as usual, it's clear that being dehydrated can negatively affect how we feel and move through the day.

While drinking enough fluid is key to helping us feel our best, less of a focus is placed on the importance of cellular hydration, or having enough fluid in the cells to allow them to do their job. But what is hydration when it comes to cells, and why is hydration important on a cellular level?

What Is Cellular Hydration?

Your body is made of trillions of cells. These cells require fluid to maintain their structure and, in turn, to function properly. Taking in enough fluid is the first step to achieving cellular hydration. Your cell membranes are highly permeable to water (meaning they permit water to pass through them), and water follows osmotic gradients. Osmotic gradients are generated when the concentration of solutes, such as sodium, is higher on one side of the membrane than the other.

In the context of your cells, this means if you don't have enough water circulating through your body, water will be drawn from the inside of the cells due to increased osmotic pressure — causing those cells to shrink. When your body contains enough water, this lowers the concentration of solutes in your body fluids, which allows more water to move inside of the cells and restore their shape.

How to Support Cellular Hydration

When you think of maintaining your hydration levels, ensuring the hydration of all cells in your body probably isn't top of mind. But supporting cellular hydration is an important factor in health and wellness.

Here are a few simple ways to support cellular hydration:

Drink Plenty of Fluids

Supplying your body with enough fluid is the most important step in maintaining cellular hydration as inadequate fluid intake can disrupt the concentration of your body fluid and lead to cellular shrinkage. Generally speaking, aim to drink enough to replace water losses and provide for regular excretion. Exactly how much water you should drink can vary widely based on a variety of factors, from your sex to your activity level to the climate.

If you lose excessive amounts of fluid due to sweating, vomiting, diarrhea or other causes, be sure to replenish your body appropriately.

Take in Adequate Electrolytes

The body aims to maintain a balance between the fluid inside the cells (intracellular) and the space outside the cells (extracellular). One of the ways it does this is by relying on electrolytes to regulate osmotic pressure, which helps the cells balance fluids across the cellular membrane.

Sodium, potassium and chloride are important electrolytes. Magnesium, calcium, phosphate and bicarbonates play important roles in cellular hydration, too. For generally healthy people, eating balanced meals that contain these nutrients may be adequate. However, if you're losing lots of fluidsdue to illness (e.g. diarrhea, vomiting or flu), exercise, travel or heat, try arehydration drink that contains these electrolytes, such as Pedialyte®.

When you're focused on replenishing your body from fluid loss, be sure to include electrolytes at the same time.The right balance of salt (sodium chloride) and sugar (glucose) in your drink can help promote proper fluid balance and cellular hydration.

Eat Hydrating Foods Every Day

Sure, you should sip on water or other fluids consistently throughout the day. But don't forget that your body also relies on foods for hydration support. Watermelon, cucumbers and grapes are all made up of large amounts of water, and eating plenty of fruits and vegetables like these can help ensure you're getting enough.

Your cells help your body function properly, and they can't do their job well when they've lost their structural integrity. By replenishing fluid loss on a daily basis and taking in enough electrolytes, you can help your cells stay adequately hydrated — which is exactly what they need to be.

Article originally published February 28, 2023.

Healthy Travel Tips: Staying Hydrated While Traveling

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Healthy Travel Tips: Staying Hydrated While Traveling

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When you're getting ready for a trip, staying hydrated while traveling might not be on your radar — but it should be. Air travel can be surprisingly dehydrating, setting you up for possible effects of mild dehydration, such as headaches, dizziness and fatigue, before you even arrive at your destination. Not getting enough fluids can interfere with short-term memory, attention and mood, too.

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Coats, Hats and...Hydration? How to Stay Hydrated in Cold Climates

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Coats, Hats and...Hydration? How to Stay Hydrated in Cold Climates

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Summer is the season that usually gets people thinking about how to stay hydrated. Hot weather makes you sweat, which increases the need for fluids, and you may feel thirstier in general. But what about winter?

Hydration in cold weather can be easy to overlook, but the truth is that cold temperatures can also increase the body's demand for fluids. In this article, you'll learn about how cold weather can increase your potential for dehydration, the signs and symptoms of dehydration and tips for staying hydratedall year long.

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What Is Hydration on a Cellular Level and Why Is It Important? (2024)

FAQs

What Is Hydration on a Cellular Level and Why Is It Important? ›

What Is Cellular Hydration? Your body is made of trillions of cells. These cells require fluid to maintain their structure and, in turn, to function properly. Taking in enough fluid is the first step to achieving cellular hydration.

Why is cellular hydration important? ›

There is evidence that cellular hydration state is an important factor controlling cellular protein turnover; protein synthesis and protein degradation are affected in opposite directions by cell swelling and shrinking.

What is hydration and why is it important? ›

Hydration is the replacement of body fluids lost through sweating, exhaling, and eliminating waste. On average, the body loses and needs to replace about 2-3 quarts of water daily. Luckily, many foods we eat are composed mostly of water. Foods with high water content include greens and most fruits and vegetables.

Why do we need water on a cellular level? ›

Water allows everything inside cells to have the right shape at the molecular level. As shape is critical for biochemical processes, this is also one of water's most important roles. Figure 2: Water impacts cell shape. Water creates pressure inside the cell that helps it maintain shape.

Why is it important to know your hydration status? ›

Low levels of fluid in the body can cause headaches, feelings of dizziness, lethargy, poor concentration and a dry mouth. Over a longer term, dehydration can cause constipation and can be associated with urinary tract infections and the formation of kidney stones.

What does hydrate on a cellular level mean? ›

What Is Cellular Hydration? Your body is made of trillions of cells. These cells require fluid to maintain their structure and, in turn, to function properly. Taking in enough fluid is the first step to achieving cellular hydration.

How to hydrate on a cellular level? ›

Drink Water

The number one way to boost your cellular hydration levels is to get a healthy intake of water. Drinking water will give your cells a direct boost of hydration, so it's important to prioritize drinking plenty of water throughout the course of the day.

Why is the cellular level important? ›

Cells build upon one another to form tissues, tissues form organs, and organs form bodily systems. For our organs and systems (and ultimately our entire bodies) to function properly, our cells must first function properly. Everything that happens in our bodies begins on a cellular level.

Is cellular hydration a real thing? ›

Every cell in the body requires cellular hydration in order to function properly. This means that the foundational function of human energy relies on its level of hydration. Adenosine triphosphate (ATP) is produced in the mitochondria of the cell.

What are the symptoms of cellular dehydration? ›

If dehydration continues, tissues of the body begin to dry out, and cells begin to shrivel and malfunction. In severe dehydration, the sensation of thirst may actually decrease and blood pressure can fall, causing light-headedness or fainting, particularly upon standing (a condition called orthostatic hypotension).

What is the most important measure of hydration? ›

Urine Color – Urine color can be assessed and compared with the urine color chart (as seen to the right). This is the easiest measure of hydration for most people because it is easy to assess and does not need additional equipment to do so. The higher the number or darker the color the greater degree of dehydration.

Why is hydration important for the health and well being of patients? ›

Dehydration can slow down circulation and affect the flow of oxygen to your brain. A lack of fluids can also cause your heart to work harder to pump oxygen all throughout your body. All of that expended energy can make you feel tired, sluggish, and less focused.

Why is hydration important mentally? ›

According to the National Council on Aging, “even mild dehydration – as little as 2% fluid loss – can affect memory, mood, concentration, and reaction time.” Getting adequate hydration throughout the day can balance all these areas and positively impact our brain performance.

What is the function of cellular dehydration? ›

Whereas cell swelling triggers anabolic pathways and protects cells from heat and oxidative challenge, cellular dehydration contributes to insulin resistance and catabolism and increases the cellular susceptibility to stress-induced damage.

Why is it important not to underhydrate the patient's cells? ›

HYDRATION at the cellular level is an important factor in health and disease and is a key metabolic signal because overhydration can trigger anabolism, and cell shrinkage leads to catabolism (1)(2). Cellular dehydration promotes the toxicity of drugs with an intracellular distribution.

What is cellular hydration state an important determinant of protein catabolism in health and disease? ›

Cellular hydration state is the amount of water inside a cell. A large volume of water inside a cell causes swelling, which may stimulate protein synthesis. A reduced volume of water inside the cell causes shrinkage, which may stimulate protein catabolism.

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