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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 12 min ago

What are the health benefits of beetroot juice?

Fri, 04/05/2019 - 19:00
Beetroot juice contains plenty of healthful vitamins, minerals, and antioxidants. Drinking beetroot juice could provide several health benefits, such as lowering blood pressure and reducing inflammation. In this article, we discuss the health benefits, nutrition, and side effects of beetroot juice.

List of the best full-body exercises

Fri, 04/05/2019 - 18:00
The best full-body exercises include squats, burpees, lunges, and cycling. People can do these to exercise several muscles at once. Learn more about how to do these exercises here.

Poor diet biggest risk factor for early deaths worldwide

Fri, 04/05/2019 - 15:00
A global study links 1 in 5 deaths to poor diet, suggesting that low intake of fruit, vegetables, nuts, seeds, whole grains, and legumes is a major factor.

Keto diet: A 'cheat day' may undo benefits and damage blood vessels

Fri, 04/05/2019 - 14:00
New research suggests that people should not follow the ketogenic diet for 6 days and then take a day off, as a 'cheat day' may offset the benefits.

'Even moderate alcohol consumption increases stroke risk'

Fri, 04/05/2019 - 07:00
A large cohort study in a Chinese population contradicts previous findings suggesting that moderate alcohol intake can protect against stroke.

How to begin intermittent fasting

Fri, 04/05/2019 - 02:00
Intermittent fasting has many potential benefits, including helping a person to lose weight. Tips to start include having a goal, choosing a suitable method, and creating meal. Learn about possible side effects and who should not fast.

Health benefits of olive leaf extract

Thu, 04/04/2019 - 19:00
Research is beginning to show that olive leaf extract may have several potential health benefits. These include lowering blood pressure, improving cholesterol, and reducing the risk of weight gain and type 2 diabetes. Learn more here.

How does oxidative stress affect the body?

Wed, 04/03/2019 - 18:00
Oxidative stress can damage cells and occurs when there is an excess of free radicals. The body produces free radicals during normal metabolic processes but also produces antioxidants to neutralize them. Long-term oxidative stress can contribute to aging and may play a role in a number of conditions. Learn more here.

What happens when you eat fast food?

Tue, 04/02/2019 - 02:00
Fast food has many short- and long-term effects on the body. People may feel hungry soon after eating and gain weight over time. Learn more about how fast food affects the body here.

What are the most healthful oils?

Sat, 03/30/2019 - 17:00
Healthful oils are an essential part of all diets. In this article, we compare some of the most popular oils, looking at their health benefits, nutrition, and uses in cooking. We include olive oil, coconut oil, canola oil, and vegetable oil.

Atherosclerosis: Scans spot inflammation in arteries before they harden

Tue, 03/26/2019 - 16:00
Using advanced imaging to scan people with some atherosclerotic plaques, scientists detected inflammation in arteries that had not yet developed plaques.

Sugary drinks can be a factor in cardiovascular disease

Mon, 03/25/2019 - 07:00
A recent study finds an association between sugary drinks and higher rates of mortality from cardiovascular disease, as well as higher cancer rates.

Stroke: Rewiring eye-brain connection may restore vision

Sun, 03/24/2019 - 07:00
Groundbreaking research finds that some vision loss after a stroke may be reversible. The researchers hope that this finding may inform future treatments.

Surgery with ultrasound treats high blood pressure in trial

Fri, 03/22/2019 - 15:00
A minimally invasive procedure that disables nerves leading to the kidneys maintained reduced blood pressure for 6 months with less prescribed medications.

Why your gut may hold the key to cardiovascular health

Thu, 03/21/2019 - 15:00
A new study examines the link between gut bacteria, aging, and cardiovascular health. The authors conclude that 'the fountain of youth may lie in the gut.'

10 minutes of leisurely activity per week may lower death risk

Wed, 03/20/2019 - 07:00
New observational research in a large cohort has found a strong link between leisurely physical activity — even in low amounts — and a lower death risk.

Higher cholesterol, egg consumption linked to heart disease

Mon, 03/18/2019 - 16:00
Pooled data on 29,615 people spanning up to 31 years ties higher egg or cholesterol consumption to raised risk of cardiovascular disease and early death.

Common blood pressure drug may increase cardiac arrest risk

Mon, 03/18/2019 - 10:00
A recent preliminary study concluded that a common drug that doctors prescribe to treat hypertension and angina may increase the risk of cardiac arrest.

CPR steps: A visual guide

Fri, 03/15/2019 - 18:00
Knowing the steps of CPR can help save a person's life. In this article, we look at CPR steps, including how to prepare, when to use it, and which techniques to use.

Heart failure: New drug could halt disease and improve heart function

Fri, 03/15/2019 - 16:00
A molecule that stops two proteins from interacting and impairing heart function halted heart failure and improved heart pumping capacity in rats.

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