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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: 49 min 21 sec ago

Why a regular bedtime may benefit your heart and metabolism

Mon, 09/24/2018 - 07:00
New research examines the cardiometabolic health risks associated with irregular bedtimes among older adults over a 10-year period.

The Mediterranean diet reduces stroke risk, too

Sat, 09/22/2018 - 10:00
In the latest study to investigate the benefits of the Mediterranean diet, researchers identify a reduction in stroke risk for those who partake.

Inflammation keeps heart attack and stroke at bay

Fri, 09/21/2018 - 16:00
While inflammation helps atherosclerosis plaques build up inside arteries, it also has a key role in preventing the more advanced plaques from rupturing.

High-fiber foods for a healthful diet

Fri, 09/21/2018 - 11:00
Fiber is an essential nutrient for boosting heart and gut health, and yet hardly anyone includes enough of it in their daily diet. In this article, we explain some of the best high-fiber foods, including fruits, vegetables, nuts, and grains.

Stroke severity reduced in those who walk regularly

Thu, 09/20/2018 - 16:00
A study of people who had strokes finds that symptoms were less severe in those who did light to moderate exercise, such as 4 hours of walking per week.

Can a heart treatment lower depression and anxiety?

Thu, 09/20/2018 - 07:00
Researchers find that one treatment for atrial fibrillation effectively improves the symptoms of anxiety and depression linked with this condition.

Daily aspirin does not make for a longer, 'disability-free' life

Wed, 09/19/2018 - 16:00
Daily low-dose aspirin does not help healthy older people with no history of heart problems live a longer dementia- and disability-free life, a study says.

High blood pressure breakthrough: Over 500 genes uncovered

Tue, 09/18/2018 - 10:00
The world's largest genetic study of hypertension finds that the number of genetic loci involved is three times larger than previously thought.

Three daily servings of dairy may keep your heart healthy

Sun, 09/16/2018 - 07:00
New research rehabilitates the heart-healthy role of whole-fat dairy products, as a high intake is found to lower the risk of cardiovascular mortality.

Inhaled blood pressure drug could prevent panic attacks

Fri, 09/14/2018 - 07:00
New research suggests that a drug commonly used for hypertension could be used as a quick-acting nasal spray to prevent anxiety attacks.

Using the body clock to make drugs more effective

Thu, 09/13/2018 - 10:00
A new database of circadian changes in genetic expression can help physicians time drugs so that they're synched up to the patient's body clock.

Fasting-induced anti-aging molecule keeps blood vessels young

Tue, 09/11/2018 - 14:00
A ketone molecule produced by the body during calorie restriction keeps blood vessels young, staving off age-related chronic disease.

Can a 16-week lifestyle intervention impact blood pressure?

Mon, 09/10/2018 - 10:00
A recent study demonstrates that simply changing diet and increasing exercise can significantly reduce blood pressure in just 16 weeks.

These supplements may actually harm your health

Sun, 09/09/2018 - 10:00
A new study finds that numerous weight loss and fitness supplements contain unsafe amounts of a substance that may harm cardiovascular health.

Why does olive oil keep heart attack and stroke at bay?

Fri, 09/07/2018 - 16:00
A new study shows that the protein ApoA-IV, which rises in the blood after eating (especially unsaturated fats), prevents thrombosis by blocking platelets.

How many is too many eggs?

Thu, 09/06/2018 - 18:00
Many people add eggs to their diet to increase their protein intake. Although research once linked eggs to cholesterol, it has now proven that people can consume eggs safely. There is no set number of eggs a person should eat. Most people can eat 1–3 eggs per day. Learn more about how many eggs you should eat here.

Walking may prevent heart failure in senior women

Thu, 09/06/2018 - 07:00
This first-of-its-kind study examines the association between walking and two different subtypes of heart failure among senior women.

How to tell if stress is affecting your sleep

Wed, 09/05/2018 - 20:00
Stress can adversely affect physical and mental health. One common result of stress is an inability to sleep. Insufficient sleep can increase the risk of a range of health conditions. Reducing stress through exercise and medication can improve quality of sleep. Learn more about the link between stress and sleep here.

Common painkiller poses risk to heart health

Wed, 09/05/2018 - 07:00
New research suggests that a widely used painkiller raises the risk of major cardiovascular problems such as heart attack and stroke.

What to eat before a workout to lose weight and build muscle

Mon, 09/03/2018 - 19:00
Many types of food can aid a workout by providing the body with energy and nutrients. The right foods can help to burn fat, build muscle, and prepare the body to recover from exercise. Learn what to eat before a workout here.