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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: 2 hours 36 min ago

Protein 'tricks heart' into healthy growth without exercise

Tue, 08/08/2017 - 14:00
A new study shows that the protein cardiotrophin 1 can induce the heart to grow in a healthy way - as in response to exercise - and pump more blood.

Heart-healthy middle age tied to lower risk of dementia

Mon, 08/07/2017 - 15:00
Study finds that modifiable vascular risk factors such as diabetes, high blood pressure, and smoking in mid-life are tied to higher risk of dementia later.

Characteristics of metabolically unhealthy lean people

Fri, 08/04/2017 - 07:00
Compared to people who are of normal weight and metabolically healthy, subjects who are of normal weight but metabolically unhealthy (~20% of normal weight adults) have a more than three-fold higher...

Common allergy drugs may prevent blood clots

Fri, 08/04/2017 - 07:00
New research in mice suggests that common allergy drugs may offer a bleeding risk-free alternative to existing anti-clotting medication.

Breakthrough: Gene editing repairs mutation in human embryos

Thu, 08/03/2017 - 15:00
For the first time, scientists have used CRISPR-Cas9 gene editing on human embryos to repair a mutation that causes a deadly heart condition.

CVD risk may rise sixfold in the year after pneumonia, sepsis

Wed, 08/02/2017 - 15:00
Hospital admission for pneumonia or sepsis could increase the risk of cardiovascular disease by more than sixfold in the first year, study finds.

Study identifies enzyme that protects cells from toxic fat

Wed, 08/02/2017 - 07:00
A new study from Harvard T.H. Chan School of Public Health and Howard Hughes Medical Institute sheds light on how a key fat-producing enzyme helps protect cells from a toxic form of fat.

Health benefits of the Mediterranean diet are confirmed, but just for the upper class

Wed, 08/02/2017 - 07:00
The Mediterranean diet reduces the risk of cardiovascular disease but only if you are rich or highly educated. This is the surprising finding by researchers from the Italian I.R.C.C.S.

Scientists rejuvenate aging cells from children with progeria

Tue, 08/01/2017 - 14:00
Using a new approach that lengthens shortened telomeres in chromosomes, researchers reverse many markers of aging in cells from children with progeria.