Heart and circulation news, features and articles
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Staying hydrated may reduce the risk of heart failureDrinking enough fluids is important for numerous bodily functions, including helping the heart pump blood more easily.
By Rachael Rettner Last updated
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11 Surprising Facts About the Circulatory SystemThe human circulatory system was once a subject of great mystery, but now, modern science has revealed its inner workings. Here are 11 surprising facts about the human circulatory system.
By Joseph Castro Last updated
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The Circulatory System: An Amazing Circuit That Keeps Our Bodies GoingThe heart, lungs and about 60,000 miles of blood vessels work together to keep blood pumping through our bodies.
By Kim Ann Zimmermann Last updated
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Man dies from caffeine overdose after drinking equivalent of 200 cups of coffeeCaffeine powders can be dangerous because they are much more potent than typical caffeine-containing beverages.
By Rachael Rettner Last updated
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Veins and arteries: Facts about our blood vesselsReference Veins, arteries and capillaries make up a sophisticated circuit of blood vessels. This provides oxygen, removes waste, and maintains pressure so that our bodies can operate ceaselessly.
By James Horton Published
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A woman would faint whenever she tried to stand. New implant lets her walk.The patient has a condition called multiple system atrophy.
By Nicoletta Lanese Published
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Why do we have different blood types?The disease malaria appears to have influenced blood type prevalence.
By Tyler Santora Published
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Insulin resistance: Risk factor for heart disease and diabetesReference Insulin resistance is a condition where the body's cells don't properly respond to the hormone insulin, which tells cells to take in blood sugar and use it for fuel.
By Tia Ghose Published
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Man's energy drink habit lands him in the hospital with heart failureThe findings add to a growing body of evidence linking energy drink consumption with heart problems.
By Rachael Rettner Published
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