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The cardiovascular system is comprised of the heart and the network of arteries, veins, and capillaries that carries blood throughout the body. The average adult male has between 5-6 liters of blood while the average adult female has 4-5 liters. Blood transports oxygen and essential nutrients to all of the living cells in the body, and also carries waste products from the tissues to the systems of the body through which they are removed.
Updated: 1 hour 41 sec ago

What to do in the event of a heart attack

Wed, 05/29/2019 - 06:00
Symptoms of a heart attack include chest pain and shortness of breath. People should call the emergency services if they suspect a heart attack. Risk factors include age. Learn more here.

How a fruit compound may lower blood pressure

Fri, 05/24/2019 - 14:00
New research in mice and human cells finds that a fruit compound lowers blood pressure. The study also reveals the mechanism by which it does this.

What is the most healthful oil for frying?

Fri, 05/24/2019 - 02:00
How healthful an oil is for frying depends on when it breaks down and how long a person heats it for. Some of the more healthful oils include olive oil, avocado oil, and canola oil. Learn more about the best oils for deep frying, shallow frying, and roasting, along with other nutrition considerations, here.

How lack of sleep harms circulation

Thu, 05/23/2019 - 16:00
New research pinpoints a possible mechanism underlying the relationship between lack of sleep and a heightened risk of diverse cardiovascular problems.

What causes dizziness?

Thu, 05/23/2019 - 01:00
Some common reasons for feeling dizzy include migraine episodes, low blood pressure, motion sickness, and stress. Resolving the underlying cause will usually improve the symptoms. Learn more here.

Best 10 foods to boost metabolism

Wed, 05/22/2019 - 00:00
Chili peppers, protein sources, and green vegetables are among the best foods for boosting metabolism. In this article, we provide a list of the best metabolism boosting foods and other tips to increase metabolic rate.

What to know about nitroglycerin

Fri, 05/17/2019 - 17:00
Nitroglycerin is a drug that primarily treats a specific chest pain that doctors call angina. Learn about when they prescribe it, how it works to relieve angina, safe dosages, risks, and side effects here.

More women risking heart health through lack of exercise

Fri, 05/17/2019 - 14:00
New research examines the patterns of physical activity among women in the United States who also have a form of cardiovascular disease.

How much coffee is too much for the heart?

Fri, 05/17/2019 - 10:00
In a large new study, researchers identify 'the tipping point' for consumption after which coffee can increase a person's cardiovascular risk.

Supplement for joint pain linked to lower heart disease risk

Thu, 05/16/2019 - 07:00
A large new study has found an association between glucosamine, a common dietary supplement for joint pain, and a lower risk of cardiovascular problems.

What to know about omega-3 fatty acids

Wed, 05/15/2019 - 18:00
Omega-3 fatty acids are present in foods such as fish. Their potential benefits include reducing inflammation and heart disease risk. Adversely, omega-3s may cause bleeding problems if someone is on certain medication. Learn more here.

DASH diet reduced heart failure risk 'by almost half' in people under 75

Tue, 05/14/2019 - 16:00
People under 75 who followed a plant-rich diet for reducing high blood pressure had a significantly lower risk of heart failure than those who did not.

5 causes of cold intolerance

Fri, 05/10/2019 - 19:00
While some people simply get colder more easily than others, cold intolerance can also result from an underlying medical condition. In this article, learn about possible causes of feeling cold all the time, including hypothyroidism, anemia, and Raynaud’s disease.

What to know about the Whole30 diet

Thu, 05/09/2019 - 18:00
The Whole30 diet involves not eating grains, legumes, dairy, and specific other food groups for 30 days. It is safe to try for most people and may have health benefits. Learn more here.

How do you prevent type 2 diabetes?

Wed, 05/08/2019 - 22:00
Several factors increase a person's risk of developing type 2 diabetes. In this article, learn about how to prevent the condition by losing weight, exercising, and eating a balanced diet.

Natural ways to lower cholesterol

Tue, 05/07/2019 - 17:00
High cholesterol levels can increase a person’s risk of heart disease. Natural ways to lower cholesterol include replacing trans fats and saturated fats with monounsaturated and polyunsaturated fats, eating more soluble fiber, and exercising regularly. Learn more here.

Cancer treatments: Patients need to know heart risks

Tue, 05/07/2019 - 10:00
Specialists warn that many people undergoing cancer treatment receive neither appropriate information about heart risks nor sufficient monitoring for them.

Using coal as a potent antioxidant

Mon, 05/06/2019 - 07:00
According to innovative new research, quantum dots derived from coal could lessen the impact of strokes, heart attacks, and brain injuries.

Type 2 diabetes: Intensive hypertension therapy may lower death risk

Sat, 05/04/2019 - 10:00
New research finds that intensive therapy for lowering the blood pressure of people with type 2 diabetes reduces their risk of mortality.

Stress, insomnia may triple death risk for those with hypertension

Sat, 05/04/2019 - 07:00
New research examines the effect of work stress and trouble sleeping on the risk of cardiovascular death in people who already have high blood pressure.

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