Hot weather can put extra strain on your heart, but with the right habits, you can stay active and healthy all summer long. From staying hydrated to adjusting your routine, small changes can make a big difference in protecting your heart.

Why Summer Heat Impacts Heart Health

When temperatures rise, your body works harder to stay cool. This includes:

• Increasing heart rate
• Expanding blood vessels
• Shifting fluid balance

For women living with or at risk of heart disease, this added strain can increase the risk of:

• Dehydration
• Heat exhaustion
• Blood pressure fluctuations

Understanding these risks is the first step in staying safe.

1. Stay Hydrated (More Than You Think You Need)

Hydration is one of the most important ways to protect your heart in the summer.

When you’re dehydrated:

• Blood volume decreases
• Your heart has to work harder
• Blood pressure can drop or fluctuate

• Drink water consistently throughout the day
• Don’t wait until you feel thirsty
• Limit alcohol and caffeine in extreme heat

👉 If you’re on fluid restrictions, talk to your healthcare provider about safe hydration levels.

2. Adjust Physical Activity for the Heat

Staying active is essential, but timing and intensity matter.

• Exercise in the early morning or evening
• Choose shaded or indoor environments when possible
• Take breaks and listen to your body

• Dizziness
• Shortness of breath
• Chest discomfort

If something feels off, stop and seek care if needed.

3. Be Aware of Medication Sensitivity

Some heart medications can affect how your body responds to heat.

These may:

• Increase dehydration risk
• Impact electrolyte balance
• Affect blood pressure

• Talk to your provider about heat-related risks
• Store medications properly (avoid extreme heat)
• Never adjust dosage without medical guidance

4. Know the Signs of Heat-Related Illness

Heat exhaustion and heat stroke can escalate quickly.

• Heavy sweating or lack of sweating
• Weakness or fatigue
• Nausea or confusion
• Rapid pulse

👉 If symptoms worsen or include confusion or fainting, seek immediate medical care.

5. Prioritize Rest and Recovery

Summer often brings busy schedules, but rest is essential.

Your heart benefits from:

• Adequate sleep
• Time to cool down after activity
• Reduced stress

Even small moments of rest can help regulate your body and protect your heart.

6. Plan Ahead for Travel and Outdoor Time

If you’re traveling or spending extended time outside:

• Bring water and medications
• Take breaks in air-conditioned spaces
• Avoid peak heat hours when possible (10 AM–4 PM)

Planning ahead can help prevent unnecessary risk.

The Bottom Line: Small Steps Matter

Summer doesn’t have to slow you down, but it does require awareness.

By staying hydrated, adjusting your routine, and listening to your body, you can protect your heart while still enjoying the season.

Take the Next Step

Looking for more ways to support your heart health?