Dehydration Symptoms and Prevention

July 2, 2019

Dehydration Symptoms and Prevention

When it is hot and humid outside, the risk of dehydration increases.  When the air is humid, sweat cannot evaporate and cool the body as quickly as it usually does.  This can lead to an increase in body temperature and the need for more fluids.  Dehydration occurs when the body loses more fluid than it is provided.  Mild to moderate dehydration can be reversed by drinking more fluids.  Severe dehydration needs immediate medical attention.

Dehydration Symptoms

Symptoms of mild to moderate dehydration include: thirst, tiredness, dizziness, lightheadedness, headache, sleepiness, and decreased urine output.  Urine color is amber, more like apple juice, instead of clear to light lemonade.  Infants, children, endurance athletes, older adults, and people with chronic illnesses have a higher risk of dehydration, especially on hot days.

Prevent Dehydration

The best plan is to prevent dehydration. Drinking fluids and eating foods high in water, such as fruits and vegetables is essential.  Did you know one cup of watermelon is about ¾ cup water.  Producing frequent, clear, urine is a good indication you are hydrated.

Before exercising, mowing the lawn, or taking part in other outdoor activities, be sure to drink water and continue to drink water at regular intervals.  Running and other strenuous activities increase the body’s need for fluids. Sport drinks are a good option for high intensity activity, lasting longer than 60 minutes.  Sports drinks contain carbohydrates and electrolytes (sodium and potassium).  Sodium retains fluid which helps to maintain hydration during.

Hydration Tips

  • Keep consistent with drinking water, especially on hot days!
  • Drink water before, during, and after exercise.
  • Flavor water with lemon, lime, or cucumber slices.
  • An insulated water bottle can keep beverages cold for long periods of time.  Carry one with you as a reminder to stay on top of hydration.
  • Check your urine color to assess hydration status.

Enjoy this summer while keeping your body hydrated!

Get more info from our CHI Health Dietitians.

Original post date: June, 2012. Revised: June, 2022.

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