Monday, April 14, 2008

Cardiovascular disease: Foods for Cardiovascular Health

Cardiovascular disease refers to the class of diseases that involve the heart or blood vessels (arteries and veins). While the term technically refers to any disease that affects the cardiovascular system, it is usually used to refer to those related to arteriosclerosis (arterial disease). These conditions have similar causes, mechanisms, and treatments. In practice, cardiologists, thoracic surgeons, vascular surgeons, neurologists, and interventional radiologists treat cardiovascular disease, depending on the organ system that is being treated. There is considerable overlap in the specialties, and it is common for certain procedures to be performed by different types of specialists in the same hospital.

Most Western countries face high and increasing rates of cardiovascular disease. Each year, heart disease kills more Americans than cancer. Diseases of the heart alone caused 30% of all deaths, with other diseases of the cardiovascular system causing substantial further death and disability. Up until the year 2005, it was the number 1 cause of death and disability in the United States and most European countries. A large histological study (PDAY) showed vascular injury accumulates from adolescence, making primary prevention efforts necessary from childhood.

By the time that heart problems are detected, the underlying cause (arteriosclerosis) is usually quite advanced, having progressed for decades. There is therefore increased emphasis on preventing arteriosclerosis by modifying risk factors, such as healthy eating, exercise and avoidance of smoking.

Foods for Cardiovascular Health

Research has shown that a diet that includes dark chocolate, almonds, fish, wine, fruits, vegetables, and garlic can increase life expectancy and decrease your risk for cardiovascular disease.

Eating oily fish at least twice a week may help reduce the risk of sudden death and arrhythmias. A 2005 review of 97 clinical trials by Studer et al. noted that omega-3 fats gave lower risk ratios than did statins. Olive oil is said to have benefits. Studies of individual heart cells showed that fatty acids blocked excessive sodium and calcium currents in the heart, which could otherwise cause dangerous, unpredictable changes in its rhythm.

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