Sitting for long hours is silently damaging your cardiovascular system.
But a new study from the University of Birmingham (UK) has revealed a surprisingly simple drink that can protect your heart and reduce your stroke risk — and no, it’s not tea or coffee.

That drink is: hot cocoa rich in flavanols.

Researchers found that flavanols help maintain blood vessel elasticity, preventing poor circulation — a key factor behind weight gain, hypertension, heart disease, and stroke.

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What the study discovered

Scientists tested 40 healthy young men, splitting them into two groups:

• One group drank hot cocoa containing about 695 mg of flavanols

• The other group drank a different beverage

Both groups were asked to remain seated for two hours.

Here’s what happened:

• Cocoa group: No decline in blood vessel function

• Other group: Reduced arterial elasticity and a slight increase in blood pressure

In short: flavanols helped protect the cardiovascular system from the negative effects of prolonged sitting — something office workers face every day.

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Why cocoa works so well

Previous studies also support cocoa’s benefits:

• Stimulates nitric oxide, which relaxes blood vessels and lowers blood pressure

• Improves overall blood flow

• Reduces inflammation

• Enhances insulin sensitivity

• Helps regulate blood sugar

All of these contribute to significantly better heart health and a lower risk of stroke.

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Expert advice: drink one cup a day

To maximize benefits, health experts recommend:

✔ Choose pure cocoa or at least 85% cocoa content

Low sugar – low fat – flavanol-rich

✔ Drink it daily

Especially if you spend long hours sitting at work, driving, or watching TV.