This system is made up majorly of the heart and the blood vessels.
The heart is the muscular pump responsible for blood circulation. It is an organ with four chambers: right atrium and left atrium, and right ventricle and left ventricle.
The two atria receive blood, the left from the lungs and the right from the rest of the body. The right ventricle sends blood to the lungs and the left ventricle pushes blood around the rest of the body. Malfunctioning of any of these chambers can cause the heart to fail in its functions, and this can manifest in a number of ways depending on which side is affected. (You can read more on heart failure here).
There are valves located at strategic places in the heart to control the flow of blood around the chambers. These valves can be damaged in some conditions, thus distorting the normal flow of blood in the heart. This in turn can damage the heart muscles and/or the lungs.
The blood vessels
The blood vessels are the channels of distribution of blood from the heart throughout the whole body where they are needed.
There is the giant artery called the aorta which stems directly from the left side of the heart and progressively divides into smaller channels until they get to the very tiny blood vessels called capillaries. From the capillaries, the vessels start reforming again, increasing progressively in size until they form the great veins which enter the right side of the heart.
Exchange of materials occur between the body tissues and the blood at the level of the capillaries. These capillaries have holes through which oxygen and other materials pass to and fro the body tissues.
The arteries carry oxygen-rich blood away from the heart while the veins carry ‘stale’ blood which has been used by the tissues back to the heart. The only exception to this rule is the pulmonary artery and pulmonary vein (these are the giant vessels of the lungs). The P. artery carries ‘stale’ blood from the right side of the heart to the lungs for a fresh supply of oxygen, while the P. vein returns oxygen-rich blood to the left side of the heart from where it is sent off again to the rest of the body.
Kedi Cardibetter Tablet- Cardiovascular Health— $55.00 (Save 21%!)
4Life Transfer Factor® Cardio®— $150.00 (Save 6%!)
RiteStart® – Women— $140.00 (Save 12%!)
RiteStart® – Men— $140.00 (Save 12%!)
Ultra Resveratrol 100— $9.99 (Save 13%!)
4 BOTTLES LEPTIN RESVERATROL 1000mg – ANTIOXIDANT COMPLEX— $82.00 (Save 25%!)
PBGS+®— $71.00 (Save 21%!)
Flaxseed Oil (OmegaTru), 1,000 mg 200 Sgels— $30.00 (Save 50%!)
1 BOTTLE LEPTIN RESVERATROL 1000mg – ANTIOXIDANT COMPLEX— $29.00 (Save 55%!)
Tre-en-en (120 capsules)— $24.72 (Save 13%!)
Lipotropic Adjunct (90 tablets)— $13.72 (Save 13%!)
Tre-en-en (60 capsules)— $13.65 (Save 13%!)
Reducing Blood Pressure Naturally— $6.00 (Save 83%!)
★★★★☆Mango Swirl Tea— $22.95
★★★★☆HerbaGreen Original— $22.95
Cholestone (90 tablets)— $52.00 (Save 13%!)
Symptoms of Cardiovascular Diseases
The following symptoms may be felt when there is a problem with the cardiovascular system. However, some of them like chest pain and breathlessness may be from other systems. It is important to consult your doctor for proper evaluation.
- Chest pain
- Unusual breathlessness with varying degrees of activity
- Breathlessness while lying down
- Waking up suddenly at night to catch your breath
- Easy fatigability
- Awareness of heartbeat
- Fainting attacks
Chest pain is a common presentation of cardiac disease but can also be a manifestation of anxiety or disease of the lungs or musculoskeletal or digestive systems.
Pain from the heart itself is typically located in the centre of the chest. It may radiate to the neck, jaw, and upper or even lower arms. The pain is typically dull, squeezing, choking, ‘heavy’, crushing, burning or aching.
Pain from the heart usually occurs during (not after) exercise and is promptly relieved (in less than 5 minutes) by rest. The pain may also be triggered or worsened by emotion but tends to occur more readily during exertion, after a large meal or in a cold wind. In some situations however, similar pain may be precipitated by minimal exertion or at rest. The pain of heart attack typically takes several minutes or even longer to develop.
Pain from heart attack may be accompanied by sweating, nausea and vomiting. Breathlessness is often prominent and occasionally the dominant feature of heart attack.
Breathlessness of cardiac origin may vary in severity from an uncomfortable awareness of breathing to a frightening sensation of ‘fighting for breath’. There are several cardiac causes of breathlessness: left heart failure of short duration (acute left heart failure), chronic (long-standing) heart failure and abnormal heart rhythm.
In acute left heart failure, there is a terrifying sensation of ‘fighting for breath’. Sitting upright or standing may provide some relief. The patient may be unable to speak and is typically distressed, agitated, sweaty and pale. Breathing is fast and noisy, with coughing. Sputum may be profuse, frothy and blood-streaked or pink.
In chronic heart failure, symptoms may first present on moderate activity, such as walking up a steep hill, and may be described as a difficulty in ‘catching my breath’. As heart failure worsens, the dyspnoea is provoked by less activity and ultimately you may be breathless walking from room to room, washing, dressing or trying to hold a conversation.
Lying down may provoke breathlessness, and you may want to prevent this by propping yourself up with pillows. After 1 or 2 hours of sleep, you may have to wake up and sit uprightly due to profound breathlessness.
This is an important symptom of heart failure and is particularly troublesome towards the end of the day. It is caused partly by inadequate oxygen delivery to the muscles especially during physical activity.
Awareness of heartbeat
Awareness of the heartbeat is common during exercise or heightened emotion. Under other circumstances it may be indicative of an abnormal cardiac rhythm.
Dizziness and fainting attacks
Cardiovascular disorders produce dizziness and fainting by brief drop in blood pressure, resulting in a sudden drop of blood supply to the brain. For this reason, one may describe either brief light-headedness or no warning symptoms at all prior to their fainting attacks. Recovery is usually rapid, unlike with other common causes of fainting (e.g. stroke, epilepsy, drug overdose).