Why sleeping for 6 hours is bad for your heart?

Written by: Deepa

14 September 2025

Think 6 hours of sleep is enough? Cardiologists say think again!

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Here are 4 reasons why sleeping poorly or not enough is detrimental for your heart health.

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When you do not get enough sleep, this triggers your stress hormones which results in rising blood pressure — a leading risk factor for having a heart attack or stroke.

Increases In Blood Pressure

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Chronic short sleep can increase levels of inflammation in your blood which can damage arteries and over time can lead to heart and blood vessel diseases.

Increases Inflammation

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Poor sleep can increase your body’s insulin resistance and is a risk factor for type 2 diabetes, which is strongly linked to heart disease.

Changes Blood Sugar Levels

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Lack of sleep can trigger arrhythmias (irregular heartbeats) which can escalate into heart failure or sudden cardiac events.

Creates Arrhythmias

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Get some quality sleep — 7–8 hours a night is best. Sleep is not a luxury — it’s a necessary component to help protect your heart & overall health.

Final Takeaway

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