High temperatures make hydration a heart health priority

PITTSBURGH, Sept. 7, 2026 — With high temperatures continuing across the greater Pittsburgh region, the American Heart Association is encouraging residents to drink plenty of water and take steps to protect their heart health.

Drinking enough water helps the heart more easily pump blood throughout the body and supports efficient muscle function. Whether walking, exercising, playing sports or spending time outdoors, adequate fluid intake can help the body perform at its best during hot weather.

"Many people don't realize how quickly dehydration can develop, especially during periods of extreme heat," said Brenda Mendizabal, MD, director of Preventive Cardiology at UPMC Children’s Hospital of Pittsburgh and board president of the American Heart Association, Pittsburgh. "Symptoms like thirst, dizziness, fatigue, headaches and swollen feet can be early warning signs that your body needs more fluids. Taking steps to stay hydrated can help prevent serious heat-related illnesses, including heat stroke."

Everyone's hydration needs are different. Factors like heat, physical activity and certain health conditions can increase how much fluid your body requires.

“If you're exercising, working outdoors or managing conditions like diabetes or heart disease, it's especially important to pay attention to your fluid intake. Most healthy adults need roughly 80-90 ounces of water a day,” Mendizabal added.

The American Heart Association recommends these hydration tips:

Don't wait until you're thirsty

• Sip water throughout the day rather than drinking large amounts at once.
• Carry a reusable water bottle to make hydration a daily habit.

Check your urine

• Pale yellow or clear urine generally indicates good hydration.
• Dark-colored urine may signal a need for more fluids.

Know the signs of dehydration

• Dizziness
• Fatigue
• Headaches
• Swollen feet

Eat water-rich foods

• Watermelon, cantaloupe, honeydew, berries and peaches
• Cucumbers, tomatoes, celery, zucchini, radishes and asparagus

Exercise smart in the heat

• Exercise during cooler morning or evening hours.
• Drink water before, during and after physical activity.
• Wear lightweight, light-colored clothing and breathable footwear.

As residents enjoy the final weeks of summer and prepare for fall activities, the American Heart Association encourages the community to put heart health into action at the 2026 Pittsburgh Heart Walk on Saturday, Sept. 12.

Participation helps fund lifesaving research, supports local programs and advances the association's mission to create longer, healthier lives for all. Register for the 2026 Pittsburgh Heart Walk at www.heart.org/PittsburghWalk

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About the American Heart Association
The American Heart Association is a relentless force for a world of longer, healthier lives. Dedicated to ensuring equitable health in all communities, the organization has been a leading source of health information for more than one hundred years. Supported by more than 35 million volunteers globally, we fund groundbreaking research, advocate for the public’s health, and provide critical resources to save and improve lives affected by cardiovascular disease and stroke. By driving breakthroughs and implementing proven solutions in science, policy, and care, we work tirelessly to advance health and transform lives every day. Connect with us on heart.org, Facebook, X or by calling 1-800-AHA-USA1.

For Inquiries:

Karen Colbert: 412.208.3556; karen.colbert@heart.org