Did you know that when you feel thirsty during a heatwave, your body is already in deficit mode? According to the Centers for Disease Control and Prevention, feeling thirsty means you are already behind in adequate hydration [1].
This can lead to a cascade of detrimental health effects, underscoring the critical importance of drinking water proactively.
What’s the right amount of water to drink?
When temperatures soar, the amount of water you need can increase dramatically. During active work or exposure to high temperatures, the CDC recommends consuming 1 cup (8 ounces) of water every 15-20 minutes. This equates to roughly ¾ to 1 quart (24-32 ounces) per hour [1].
It’s crucial, however, not to exceed 48 ounces per hour as it could lead to water intoxication, diluting the body’s sodium levels and potentially causing a medical condition called hyponatremia [1].
What to drink and what to avoid
Water is your best bet for staying hydrated. While sports drinks and energy drinks might seem appealing, they often contain high levels of sugar and caffeine, which can actually counteract hydration efforts by increasing urine output.
CNN‘s report emphasizes that plain water, complemented by regular meals to replace salts lost through sweat, is most effective for maintaining hydration [2].
Additionally, avoid alcohol and excessive caffeine, as these can worsen dehydration [1].
Why hydrate?
Adequate hydration impacts your entire body’s functionality. It helps maintain your body temperature, ensures that your joints are lubricated, and aids in flushing waste and keeping your organs functioning properly.
Particularly during a heatwave, when your body is prone to losing more water through sweat, keeping hydrated is tied directly to your overall health and ability to function effectively in the heat [1].
Practical tips for heatwave hydration
- Start early. Begin your day with plenty of water, especially before any significant outdoor activity.
- Keep water accessible. Always have a bottle of water on hand, and take frequent sips.
- Monitor your intake. Use a hydration tracker app or mark your water bottle with time-oriented goals.
- Eat water-rich foods like watermelon, cucumber, strawberries, peaches, celery, oranges, and spinach into your meals and snacks.
- Recover properly. After exposure to heat, continue drinking water to replace any fluid lost to sweat.
During a heatwave, it’s important to manage your hydration for health and safety. These guidelines will help you stay hydrated to protect yourself from dehydration and heat-related illnesses. Stay safe and enjoy the summer!
[1] Centers for Disease Control and Prevention. Hydration
[2] CNN Health. Why water is the best drink during a heat wave
