Did you know that both too little and too much sleep can increase your risk of a heart attack — even if you're otherwise healthy?
New research reveals there's a sweet spot for sleep, and your heart depends on it.
Sleep isn’t just rest
Studies show that sleeping too little or too much can significantly increase your risk of heart attack, regardless of your overall health.
Genetics matter
Even people genetically predisposed to heart disease can slash their heart attack risk simply by getting the right amount of sleep.
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Sleep acts as a powerful tool to counter genetic vulnerabilities.
Sleep impacts multiple body systems
Sleep deprivation can lead to inflammation, metabolic disorders like obesity, increased stress, and reduced immune function — all of which put extra strain on the heart.
60,000 adults showed a clear pattern
A 2018 study involving over 60,000 adults found that people who slept less than six hours per night had a significantly higher risk of developing coronary heart disease.
Poor sleep quality had a similar effect.
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Too much sleep isn't harmless either
A larger meta-analysis of more than 5 million people found that excessive sleep (more than 8 hours) was also linked to higher risks of heart disease, stroke, and overall mortality.
Quality of sleep matters just as much as quantity
It’s not just how long you sleep, but how well.
If your sleep is disturbed or you struggle to fall asleep regularly, your heart can still be at risk - even if you're technically sleeping enough hours.
Experts compare the heart to a constantly running engine
Cardiologist Dr. Guy Mintz says the heart is like an engine that never stops running.
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Just like a car engine needs downtime to avoid burnout, so does your heart — and quality sleep provides that.
Sleep needs are individual
Everyone’s sleep needs differ. While some people thrive on 6 hours, others may need closer to 9.
The key is finding the amount that leaves you feeling refreshed and functioning well.
Trouble sleeping? Get professional support
Chronic sleep issues shouldn’t be ignored.
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Sleep experts can help diagnose the root of the problem and offer solutions like cognitive behavioral therapy, lifestyle changes, and adjustments in diet or caffeine intake.
A sleep journal could be your heart’s best friend
Tracking your sleep patterns in a journal can reveal hidden habits sabotaging your rest.
This simple tool can help you get the recommended 6 to 9 hours and improve your heart health in the process.
How much sleep do you need?
Getting between 6 and 9 hours of sleep each night appears to be the most heart-friendly range.
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This article is based on information from Healthline.com.
This article is made and published by Ida-Marie Palm Varbæk, who may have used AI in the preparation.