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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: 2 hours 11 sec ago

Space travel may hold the key to cardiac repair

Wed, 04/04/2018 - 16:00
New research — conducted both in space and on Earth — suggests that simulated microgravity could be used to boost stem-cell therapy for cardiac repair.

What causes dizziness when bending over?

Tue, 04/03/2018 - 19:00
Feeling dizzy or lightheaded when bending over is a common complaint. Many of the causes of dizziness are not harmful, such as low blood pressure or a medication. It can also indicate treatable conditions, including anemia, hypothyroidism, and inner ear infections. Learn more about the causes and when to see a doctor.

What causes broken blood vessels on the face?

Tue, 04/03/2018 - 15:00
Broken blood vessels or spider veins are enlarged blood vessels under the skin. They can occur anywhere but can appear on the face for a variety of reasons, including alcohol consumption and vomiting. In this article, learn how to get rid of broken blood vessels on the face with clinical treatments and home remedies.

This is how a single high-fat meal can lead to heart disease

Tue, 04/03/2018 - 07:00
Only 4 hours after consumption, a single super-high-fat meal alters red blood cells in a way that endangers cardiovascular health, a new study finds.

Uncovering stroke's psychological impact

Fri, 03/30/2018 - 07:00
The latest research investigates the after effects of stroke. Aside from the more obvious physical issues, what other problems do stroke survivors face?

Could coffee stop clogged arteries?

Thu, 03/29/2018 - 16:00
Researchers have found that drinking at least three cups of coffee every day may prevent calcium from building up in the coronary arteries.

This supplement may promote healthy arterial aging

Thu, 03/29/2018 - 14:00
A study of healthy seniors found that a daily supplement of nicotinamide riboside triggered some of the same biological pathways as caloric restriction.

Can pecans protect heart health?

Tue, 03/27/2018 - 07:00
A new study concludes that adding pecan nuts to the diet reduces the levels of markers that signal cardiovascular risk. Here, we delve into the details.

A noisy workplace might affect your heart

Mon, 03/26/2018 - 07:00
Occupational noise is an important health hazard linked to a heightened risk of hearing loss. It can also endanger the heart, finds a new study.

How do you lower your resting heart rate?

Sun, 03/25/2018 - 07:00
Having a low resting heart rate, or pulse, is often a sign of good health. But are there easy ways to achieve this? Here, we discuss eleven ways to lower the heart rate. Some methods are immediate, while others will work in the long term. We also look at the best way to measure a resting heart rate and the ideal range.

Depression may raise risk of abnormal heart rate

Sat, 03/24/2018 - 07:00
A new study has found that people with depression are at increased risk of atrial fibrillation. In fact, they are around 30 percent likelier to develop it.

Midlife tooth loss may compromise heart health

Fri, 03/23/2018 - 14:00
Midlife tooth loss is tied to higher risk of cardiovascular disease, independently of traditional risk factors such as high blood pressure, a study finds.

Could grilling your meat raise blood pressure?

Thu, 03/22/2018 - 15:00
Researchers suggest that regular consumption of grilled or barbecued meat or fish could raise the risk of developing high blood pressure.

These plant-based fats could help you live longer

Thu, 03/22/2018 - 14:00
Research on more than 90,000 people shows that diets rich in plant-based — but not animal-based — monounsaturated fats are linked to lower risk of death.

Booze may make the heart beat faster

Wed, 03/21/2018 - 10:00
A study of more than 3,000 adults who attended the 2015 Munich Oktoberfest reveals that drinking can increase our heart rate, but should we be worried?

Could omega-6 fatty acids help us live longer?

Tue, 03/20/2018 - 14:00
A study finds that higher blood levels of linoleic acid — the most common omega-6 polyunsaturated fatty acid — are linked to lower risk of premature death.

What is a left atrial enlargement?

Sun, 03/18/2018 - 10:00
Left atrial enlargement is linked to several conditions, including atrial fibrillation and heart failure. Learn more about the causes and treatment.

Over 400,000 U.S. deaths per year caused by lead exposure

Tue, 03/13/2018 - 16:00
The health risks of lead exposure might be worse than we thought; researchers estimate that it could kill more than 400,000 adults in the U.S. each year.

These antibiotics may endanger vascular health

Tue, 03/13/2018 - 15:00
Researchers in Sweden and Denmark find new evidence that suggests that a type of antibiotic can increase the risk of a potentially fatal vascular disease.

Death risk increased with two blood pressure drugs

Tue, 03/13/2018 - 10:00
Researchers reveal that two classes of medication used to treat hypertension could raise blood pressure variability, which may increase the risk of death.

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