How Hydration Affects Work Performance: Part 1 – Increased Energy Levels

4 mins read

While we could talk about the benefits of hydration for years, this article discusses how drinking water can affect work performance through increased energy levels.

It’s Monday morning and you’re sitting at your desk, bright eyed and cheery, thinking to yourself “I am ready and excited to tackle the busy work week ahead” – let’s be realistic; that is pretty much no one, ever. Most Monday mornings start with a sluggish pace and morning routines to muster up the motivation for the day ahead, never mind the entire week! Most people’s routines include a hot cup of coffee (or 4!) to make it through the workday. What if we told you drinking more water and properly hydrating could give some of the same energy perks people seek in the caffeine from coffee? Here is one of the BIG ways that hydration can affect your performance at work.

Increases Energy Levels

Water is essential for many physical functions in our bodies, which is reflected by the fact that an average of 60% of the human body is water! One of the functions water has in our bodies is to help control our blood pressure through the volume of water present in our blood. Exhaustion is one of the first signs of evidence for inadequate blood volume in our vessels, and fatigue for the same reason can lead to exhaustion due to a lack of fluids in the blood vessels. The sense of exhaustion itself is felt from the difficulty of maintaining enough circulation for an adequate blood pressure in our nerve centers. So, would exhaustion and energy levels affect work performance in your business? We at BIG personally consider staying awake on the job a very important part of work performance!

Now that we understand the relationship between water, blood pressure, and fatigue, Dr. Van Zwalenburg was able to explain this with a simple demonstration of the concept in his article from the Western Journal of Medicine. After a full day in the sun playing 18 holes of golf sweating excessively, or 2-3 strenuous hours in the operating room, Dr. Van Zwalenburg drinks a couple glasses of water, reclines on the couch, and waits for the water to absorb in his body. After only 10 minutes he feels entirely rejuvenated and is able to resume the rest of his duties for the day. The Dr. explains that his fatigue is overcome by simply replenishing the blood vessels after the reservoir has run low.


Who knew we had our own little hydropower systems running inside of us?! While it is rarely considered that water can help with work performance, understanding the relationship between hydration and energy brings perspective, as energy levels directly affect productivity at work. Living in as lovely a place as we do can leave us forgetting how truly lucky we are to access clean drinking water so readily. Next time you or a co-worker lets that yawn slip at work, consider replenishing your water levels before you reach to re-fill that cup of coffee!

Check back for more articles in this series on “How Hydration Affects Work Performance”!

Download this resource article How Hydration Affects Work Performance: Part 1 – Increased Energy Levels (pdf).

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