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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 8 min ago

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.

Cardiovascular disease: Study finds best drugs for prevention

Sat, 09/01/2018 - 10:00
A large cohort study finds out which treatments work best to prevent cardiovascular events in individuals with hypertension and other risk factors.

Mediterranean diet shown to prolong seniors' lives

Fri, 08/31/2018 - 16:00
An Italian study of thousands of people aged 65 and older finds that adherence to a Mediterranean diet is linked to lower risk of premature death.

What to know about brain stem strokes

Fri, 08/31/2018 - 12:00
The brain stem controls several vital body functions, such as heart rate, blood pressure, and breathing. A blockage or bleed in the brain stem can cause a brain stem stroke and impact a person’s coordination, movement, and speech. We give an overview of brain stem strokes, including symptoms, treatments, and risks.

Is there a link between acid reflux and palpitations?

Thu, 08/30/2018 - 17:00
Acid reflux and GERD are unlikely to cause heart palpitations directly. However, the same factors, such as eating certain foods, can trigger both acid reflux and palpitations. Acid reflux could also cause anxiety, which can lead to palpitations. Learn more about the link here, as well as how to treat palpitations.

What are the consequences of a sedentary lifestyle?

Wed, 08/29/2018 - 20:00
People living a sedentary lifestyle spend too much time engaging in behaviors that expend very little energy. A sedentary lifestyle can cause severe health issues, including cancer, diabetes, and poor cardiovascular health. Solutions include doing more exercise. Learn about the effects of a sedentary lifestyle here.

How exercise affects metabolic hormones

Wed, 08/29/2018 - 16:00
A new study reveals that endurance training, such as cycling, impacts 'metabolic signaling molecules' differently to resistance training with weights.

Dairy and meat 'beneficial for heart health and longevity'

Wed, 08/29/2018 - 14:00
What does a modern, international diet that keeps your heart healthy look like? A new study investigates, and it draws some controversial conclusions.

Newly discovered skull channels play role in immunity

Wed, 08/29/2018 - 10:00
Newly discovered channels in the skull allow injured brain tissue to communicate directly with the bone marrow, regulating the release of immune cells.

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