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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: 27 min 16 sec ago

Hundreds of current medical practices may be ineffective

Sat, 06/15/2019 - 10:00
A new meta-analysis of over 3,000 studies finds that almost 400 medical practices are currently being used despite being ineffective.

What are the perks and problems of being a night owl?

Fri, 06/14/2019 - 16:00
Many recent studies suggest that people who are 'night owls' may face higher health risks. But why is that, really? Our Spotlight feature investigates.

Low fruit and vegetable intake may account for millions of deaths

Fri, 06/14/2019 - 10:00
New research estimates that an insufficient intake of fruits and vegetables is likely to be behind millions of cardiovascular deaths worldwide.

Estrogen, vitamin D may protect metabolic health after menopause

Thu, 06/13/2019 - 16:00
A study of postmenopausal women in China has found that those at highest risk for metabolic syndrome were those with low levels of estrogen and vitamin D.

Common acne drug could prevent artery hardening

Tue, 06/11/2019 - 16:00
Scientists have identified the mechanism that causes artery hardening and have shown that the antibiotic minocycline can prevent the process in rats.

Heart disease death: 'White coat hypertension' may double risk

Tue, 06/11/2019 - 14:00
New research examines the correlations between untreated 'white coat hypertension,' treated 'white coat effect,' heart disease, and heart disease death.

3 interventions could prevent millions of cardiovascular deaths

Tue, 06/11/2019 - 07:00
A new Harvard study argues that implementing three heart health interventions at a global level could save millions of lives in the next couple of decades.

What causes lower back and hip pain?

Tue, 06/11/2019 - 00:00
In this article, we look at common causes of lower back and hip pain. We also discuss ways to relieve pain and when to see a doctor.

What is the normal range for troponin levels?

Fri, 06/07/2019 - 18:00
Troponin levels in the blood are normally very low and increase when the heart becomes damaged. Very high levels usually indicate that a person has recently had a heart attack. However, a number of other conditions can also cause elevated troponin levels. Learn more here.

Tomato juice: Could 1 cup per day keep heart disease at bay?

Thu, 06/06/2019 - 15:00
A new study concludes that drinking tomato juice each day can reduce the levels of certain markers of cardiovascular disease. However, more work is needed.

Cardiovascular disease: 7 simple steps that lower future risk

Tue, 06/04/2019 - 15:00
New research examines how adhering to the American Heart Association's recommendations for a healthy heart predicts future risk of cardiovascular disease.

Common heartburn drug linked with fatal conditions

Tue, 06/04/2019 - 07:00
New research finds a link between proton pump inhibitors and heightened risk of death from heart disease, kidney disease, and stomach cancer.

Is coffee bad for the heart or not?

Mon, 06/03/2019 - 15:00
Reports about the effect of coffee on heart health can be contradictory, so a new study from Britain aims to shed more light on this problem.

Type 2 diabetes: High-intensity exercise may restore heart function

Mon, 06/03/2019 - 10:00
New research finds that high-intensity interval training helps to reduce heart complications in people living with type 2 diabetes.

Menopause and heart health: Why timing hormone therapy is key

Mon, 06/03/2019 - 07:00
Researchers at the University of Guelph in Canada are the first to study how perimenopause affects heart health in female mice.

New study links air pollution with atherosclerosis

Sun, 06/02/2019 - 10:00
Scientists have found an intriguing association between exposure to ambient ozone and the thickening of the carotid arteries' walls.

Can blueberries protect heart health?

Sat, 06/01/2019 - 10:00
A recent study that investigated the impact of blueberries on cardiovascular health concludes that we should all be eating 1 cup of blueberries each day.

Clinical trial shows why energy drinks are bad for the heart

Thu, 05/30/2019 - 10:00
In a clinical trial, researchers found significant changes in heart rhythm and blood pressure after volunteers consumed two different energy drinks.

Olives: Nutrition and health benefits

Thu, 05/30/2019 - 06:00
Olives are a delicious snack, and they make a great addition to many popular dishes. They are also a key component of the Mediterranean diet. Learn more about their possible health benefits here.

What is the link between asthma and pneumonia?

Thu, 05/30/2019 - 00:00
Asthma and pneumonia are respiratory conditions. They have different causes but similar symptoms. Learn about the connection between asthma and pneumonia, and what distinguishes them, here.