Cardiovascular Risk

Regular Exercise Critical for Heart Health, Longevity

Workout.ExerciseDictThe majority of citizens in developed countries should not be concerned by potential harm from exercise but rather by the lack of exercise in their lives, according to a clinical perspective published in the Journal of the American College of Cardiology from the ACC Sports and Exercise Cardiology Leadership Council. According to the council, small amounts of physical activity, including standing, are associated with a lower risk of cardiovascular disease, but more exercise leads to even greater reduction in risk of death from cardiovascular disease.

“The evidence with regard to exercise continues to unfold and educate the cardiovascular clinical community,” said JACC Editor-in-Chief Valentin Fuster, M.D., Ph.D. “The greatest benefit is to simply exercise, regardless of the intensity, while the danger is two-fold: to not exercise at all or to exercise intensely, without due preparation.”

The council found that moderate and vigorous intensity exercise lower mortality risk in different populations around the globe. Increasing the amount of moderate intensity exercise a person engages in results in increased reductions in cardiovascular disease mortality; however, the reductions in cardiovascular mortality benefits from vigorous intensity exercise do level out at a certain point.

There is no evidence for an upper limit to exercise-induced health benefits and all amounts of both moderate and vigorous intensity exercise result in a reduction of both all-cause and cardiovascular disease mortality compared to physical inactivity.

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Source: ScienceDaily, 18 January 2016.

Blueberries Confer Immune and Cardiovascular Benefits

Food.BlueberryAbundant in the flavonoids anthocyanin and flavanol, blueberries have been shown in previous studies to improve cognitive performance and brain health. Steven R. McAnulty, from Appalachian State University (North Carolina, USA), and colleagues enrolled 25 men and postmenopausal women, to receive a daily supplement of blueberry powder (equivalent of 250 gm of blueberries), or placebo, for six weeks. Among those receiving the supplement, the researchers observed that natural killer cells rose by 4%. As well, among pre-hypertensive subjects, the blueberry powder caused significant reduction of diastolic blood pressure.

The study authors write that: “blueberry ingestion for six weeks increases natural killer cells and reduces augmentation index, aortic systolic pressure, and diastolic pressures in sedentary males and females.”

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Source: WorldHealth.net