Can You Drink Too Much Water?   

Stay Healthy This Summer with Proper Hydration

Summer is here, which often means more time spent outdoors enjoying the sun. We are often reminded of the importance of staying hydrated for safety in the heat, but can we drink too much water?

The Importance of Drinking Water

Water plays an essential role in maintaining the proper functioning of your body’s systems. It helps regulate temperature, prevents constipation, flushes out waste, and supports every major body system. While not drinking enough water is a common and serious concern, it’s also important to know that overhydration, or drinking too much water, can be dangerous too.

Can You Drink Too Much Water?

Yes, it is possible to drink too much water. Overhydration can happen for several reasons. Certain medications may increase thirst or cause the body to retain more fluid. Endurance athletes and individuals who overcompensate during heat exposure may also consume water beyond what their bodies can process.

The kidneys, which are responsible for filtering and balancing fluids, can process roughly one liter of water per hour. Drinking significantly more than this over a short period can overwhelm their function and dilute sodium levels in the blood causing a condition called hyponatremia (low sodium levels).

Signs of overhydration may include:

• Headache
• Nausea or vomiting
• Fatigue
• Confusion or drowsiness
• Muscle cramping or weakness

If your body can’t eliminate excess water efficiently, the imbalance can lead to serious medical conditions like hyponatremia or even seizures, coma, or death in severe cases. It’s important that if you are experiencing any of these symptoms you seek medical care immediately.   

How Much Water Should You Drink?

There’s no universal rule for hydration. However, it’s generally recommended that healthy adults drink about 9–13 cups of water daily, depending on their body size, activity level, and environment. This number includes all sources of fluid intake, not just drinking water. And to most people’s surprise, about 20% of your daily fluid intake comes from food, especially fruits and vegetables.

It is important to listen to your body. Especially during the hot summer months, your hydration needs may increase as your body loses more fluid through sweat, increasing the risk of dehydration and heat-related illnesses. Dehydration can vary in appearance from person to person, but common symptoms include:

• Dry mouth or tongue
• Dark-colored urine or infrequent urination
• Fatigue or dizziness
• Headache (worsening with movement)
• Confusion
• Extreme thirst

To stay properly hydrated this summer, drink water consistently throughout the day, eat water-rich foods, and limit excessive caffeine or alcohol, as both can contribute to fluid loss.

24/7 Immediate Emergency Care

If you or someone you know is showing signs of severe dehydration or water toxicity, Covington Trace ER & Hospital is here for you, 24/7. Our dedicated team is here to provide immediate treatment to quickly address symptoms and get you back to enjoying the summer fun.

Discover the care you deserve when you need it most!     

Disclaimer: As a service to our readers, Covington Trace ER & Hospital and Nutex Health state no content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.