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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: 24 min 30 sec ago

Vegetarian heart health: Study identifies benefits and risks

Sat, 09/07/2019 - 10:00
A new study concludes that a vegetarian diet reduces the risk of ischemic heart disease. It also finds a small but surprising increased risk of stroke.

Physical inactivity for 2 decades linked with twice the mortality risk

Sat, 09/07/2019 - 07:00
New research finds that a lack of physical activity for 20 years is associated with doubled mortality risk compared with people who have exercised.

What is the rarest blood type?

Sat, 09/07/2019 - 02:00
The rarest blood type is called Rhnull. Only around 1 in every 6 million people have Rhnull blood. Learn about other blood types and their compatibilities in this article.

Inflammation in late teens linked to mortality risk decades later

Fri, 09/06/2019 - 10:00
Experts know little about how inflammation in early life affects health later on. A new study links teen inflammation to mortality risk 35 years later.

How can mouthwash interfere with the benefits of exercise?

Thu, 09/05/2019 - 15:00
Newly published research finds that the use of antibacterial mouthwash could inhibit the blood pressure-lowering effects of exercise.

Just 2 glasses of soft drinks daily tied to higher death risk

Wed, 09/04/2019 - 16:00
A study of nearly 452,000 people ties higher soft drinks consumption — including of those artificially and sugar sweetened — to raised risk of early death.

Differences in gut bacteria may predispose to heart attacks

Wed, 09/04/2019 - 07:00
A small study has found that people with acute coronary syndrome have distinct populations of gut bacteria, suggesting these may influence heart attacks.

Heart attack risk higher in those who sleep too little or too much

Tue, 09/03/2019 - 16:00
A new study of nearly half a million people over 7 years found that those who slept 6–9 hours per night had the lowest risk of a first heart attack.

Type 2 diabetes, obesity: Weight loss surgery may lower death risk

Tue, 09/03/2019 - 10:00
A large study finds that weight loss surgery lowers the risk of death and cardiovascular events among people with obesity and type 2 diabetes.

What are the side effects of Lipitor? An overview

Mon, 09/02/2019 - 17:00
Lipitor is a cholesterol lowering statin that has a low risk of side effects. Learn about its side effects, warnings, and possible drug interactions here.

Exercise may help people with cardiovascular disease the most

Mon, 09/02/2019 - 14:00
Researchers uncover evidence suggesting that people with cardiovascular disease reap even greater benefits from exercise than healthy individuals.

Is allulose a healthful alternative to sugar?

Fri, 08/30/2019 - 21:00
Alluose is a natural sweetener that can be used as an alternative to sugar. Learn about the possible health benefits, risks, and how to use allulose here.

AI-enhanced ECGs may soon assess overall health

Fri, 08/30/2019 - 15:00
The ability of artificial intelligence to predict sex and estimate age from electrocardiogram readouts shows potential as a measure of overall health.

Heart health: Focus on healthful foods rather than diet type

Fri, 08/30/2019 - 07:00
New research looks at proportions of macronutrients, such as carbs, protein, or fats, in three different diets and their effects on cardiovascular health.

Could bone-like particles in blood contribute to artery clogging?

Thu, 08/29/2019 - 16:00
Scientists have discovered that circulating blood contains bone-like particles and suggest that they may contribute to atherosclerosis.

Deaths to heart related conditions rising in the US

Wed, 08/28/2019 - 16:00
Progress against cardiovascular disease appears to be slipping in the United States as a new study reveals total related deaths rising since 2011.

Is red meat bad for your health?

Tue, 08/27/2019 - 19:00
Red meat is a good source of protein and iron, though research has linked it to heart disease, certain cancers, and other health conditions. Learn whether red meat is good or bad for health, as well as what the official dietary guidelines recommend, here.

Altering an unhealthy gut microbiome could stave off chronic disease

Tue, 08/27/2019 - 07:00
New research in mice shows that turning an unhealthy microbiome into a healthy one may provide an alternative way to stave off cardiovascular disease.

Being easily fatigued may signal future heart problems

Sun, 08/25/2019 - 07:00
New research suggests that tiring after light physical tasks or exercise could be a signal for cardiovascular disease when people get older.

What happens if you do pushups every day?

Fri, 08/23/2019 - 22:00
Pushups are a beneficial exercise that people can do every day. Pushups can increase muscle mass and cardiovascular health. Risks include back pain. Learn more here.