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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: 3 hours 10 min ago

Chest pain and anxiety: What you need to know

Sat, 09/23/2017 - 07:00
What does anxiety chest pain feel like and how does it differ to a heart condition? What causes chest pain during anxiety and what treatment is available?

Pulsatile tinnitus: Causes, symptoms, and treatment

Fri, 09/22/2017 - 14:00
Tinnitus is where a person hears sounds within the ear, such as ringing. Pulsatile tinnitus is when the sounds are in time to the beat of their pulse.

Just 30 minutes of activity over 5 days could save lives

Fri, 09/22/2017 - 14:00
A new study of wealthy and less wealthy nations finds that physical activity of all types can reduce deaths and heart disease risks.

Are e-cigarettes bad for the heart? Study sheds light

Thu, 09/21/2017 - 07:00
New research shows that when non-smokers use nicotine-based e-cigarettes for the first time, there are measurable, negative changes in cardiac activity.

Antidepressants may raise death risk by a third

Tue, 09/19/2017 - 15:00
New research finds that people who take antidepressants such as serotonin reuptake inhibitors may be at a considerably higher risk of premature death.

Hyperemia: Causes, symptoms, and treatment

Fri, 09/15/2017 - 16:00
What is hyperemia? In this article, learn about the different types of hyperemia, including passive and active hyperemia. How can it be prevented?

Treating PCOS with a combination of oral contraceptives and spironolactone does not increase the risk of diabetes or heart disease

Fri, 09/15/2017 - 13:00
In women with polycystic ovary syndrome (PCOS), the most effective treatment is a combination of the oral contraceptive pill (OCP) with an anti-androgen, which does not increase the risk of metabolic...

Maintaining healthy weight helps keep blood pressure low through life

Fri, 09/15/2017 - 07:00
New research shows maintaining a healthy weight throughout life - more so than four other health behaviors studied - is important to help keep blood pressure in check, according to research presented...

Maintaining healthy weight helps keep blood pressure low through life

Fri, 09/15/2017 - 07:00
New research shows maintaining a healthy weight throughout life - more so than four other health behaviors studied - is important to help keep blood pressure in check, according to research presented...

Do you have diabetes, liver disease? Watch out for CVD

Wed, 09/13/2017 - 07:00
A new study shows that non-alcoholic fatty liver disease puts people with type 2 diabetes at a much higher risk of cardiovascular disease and death.

Do you have diabetes, liver disease? Watch out for CVD

Wed, 09/13/2017 - 07:00
A new study shows that non-alcoholic fatty liver disease puts people with type 2 diabetes at a much higher risk of cardiovascular disease and death.

Study shows so-called 'healthy obesity' is harmful to cardiovascular heath

Tue, 09/12/2017 - 07:00
Clinicians are being warned not to ignore the increased cardiovascular health risks of those who are classed as either 'healthy obese' or deemed to be 'normal weight' but have metabolic abnormalities...

Study shows so-called 'healthy obesity' is harmful to cardiovascular heath

Tue, 09/12/2017 - 07:00
Clinicians are being warned not to ignore the increased cardiovascular health risks of those who are classed as either 'healthy obese' or deemed to be 'normal weight' but have metabolic abnormalities...

Potentially lifesaving implantable cardioverter defibrillators underutilized in eligible patients

Mon, 09/11/2017 - 07:00
Fewer than 10% of people who experience sudden cardiac arrest (SCA) outside of a hospital survive.

Potentially lifesaving implantable cardioverter defibrillators underutilized in eligible patients

Mon, 09/11/2017 - 07:00
Fewer than 10% of people who experience sudden cardiac arrest (SCA) outside of a hospital survive.

Does blood pressure change during a heart attack?

Fri, 09/08/2017 - 16:00
Some people take a blood pressure change without other symptoms to mean that a heart attack is occurring. However, this is not usually the case.

Does blood pressure change during a heart attack?

Fri, 09/08/2017 - 16:00
Some people take a blood pressure change without other symptoms to mean that a heart attack is occurring. However, this is not usually the case.

Staying in education linked to lower risk of heart disease

Thu, 09/07/2017 - 07:00
Staying in education is associated with a lower risk of developing heart disease, finds a study published by The BMJ.

More evidence: Untreated sleep apnea shown to raise metabolic and cardiovascular stress

Thu, 09/07/2017 - 07:00
Sleep apnea, left untreated for even a few days, can increase blood sugar and fat levels, stress hormones and blood pressure, according to a new study of sleeping subjects.

Staying in education linked to lower risk of heart disease

Thu, 09/07/2017 - 07:00
Staying in education is associated with a lower risk of developing heart disease, finds a study published by The BMJ.

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