Heart Attack Symptoms, Causes, and Treatment

Plus: Sleeping in Total Darkness Is Good for Your Heart, Study Finds

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January 27, 2026   Sleeping in Total Darkness Is Good for Your Heart, Study Finds READ ON   BASED ON YOUR INTERESTS Heart Attack Symptoms, Causes, and Treatment READ ON   Atrial Flutter vs. Atrial Fibrillation READ ON   Symptoms and Early Signs of Hypertrophic Cardiomyopathy READ ON   YOUTUBE VIDEO WATCH NOW   PRODUCT PICK 3 At-Home Cholesterol Tests   We reviewed the best at-home tests for monitoring your cholesterol and keeping an eye on your health. SHOP NOW LIVING WELL More healthy reads 🩺 Subtle Signs of Hypertrophic Cardiomyopathy in Everyday Life 📈 Does Your Diet Need to Change with a Type 2 Diabetes Diagnosis? Your FAQs 🫁 Can COPD Cause Finger Clubbing? 🌻 What's the Difference Between Deadlifts and Squats, and Which Is Better?   TODAY'S RESOURCE     Healthline Lessons: Cholesterol Tips Free micro-lessons that simplify cholesterol and heart health to help you take healthy actions. SIGN UP NOW       HEALTHLINE HUBS High Cholesterol   Hypertension   Atrial Fibrillation Atrial Fibrillation   Nutrition Nutrition   Prevention   Heart Health 101 FOLLOW US ON INSTAGRAM Thanks for reading! We'll see you next time for more information about the topics important to you: heart health 101, afib, high blood pressure, risk management, and more. We'd love to hear from you! Send us a message at newsletters@healthline.com to let us know what else you'd like to see. Until then, Take care of yourself, and we'll see you again soon! View in browser Did a friend send you this email? Subscribe here. To see all newsletters, click here. Privacy   |   Unsubscribe We may feature your messages to our inbox within our content. Please do not provide any personal identifiable information. Replies may be edited for length and clarity. For more, see our Privacy Policy. Our website services, content, and products are for informational purposes only. 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