Heart
disease is the world’s number 1 killer. In the United States, over
616,000 people died of heart disease in 2008, and almost 25 percent of
deaths were caused by heart disease.
In
a paper published on January 25, 2012 in the ‘New England Journal of
Medicine’, researchers from University of Texas Southwestern Medical
Center and Northwestern University Feinberg School of Medicine pointed
out that a person's lifetime risk of developing heart disease might be
much higher than previously thought. In fact, the risk factors people
develop in younger and middle ages are going to determine their heart
disease risk across our lifetime.
Any
single risk factor like high cholesterol, diabetes, hypertension (high
blood pressure) and smoking could significantly raise the chance of
having a heart attack or stroke at some point in life. Most previous
studies, however, have focused on how such risks would influence on a
person’s heart health over the short term, say 5 to 10 years. This would
certainly depict an unrealistic picture of the longer term.
After
analyzing data taken from 254,000 participants in the Cardiovascular
Lifetime Risk Pooling Project, the study found that focusing on only
short-term risks could give an inaccurate sense of security, especially
for those individuals aged between 40 and 50. The project was meant to
measure risk factors for black and white men and women at ages 45, 55,
65 and 75.
Healthy
men aged 45, according to the findings, had a 1.4 percent risk of a
heart attack or stroke in their life, compared to 49.5 percent risk for
men with the same age having 2 or more risk factors. Among women, the
risk measured for healthy 45-year-olds was 4.1 percent, while those with
2 or more risk factors had a risk of 30.7 percent.
Even
with just one risk factor, the probability was still fairly high for
people to get a major cardiovascular event that would kill them or
greatly decrease their quality of life or health.
Therefore,
it is paramount that people should maintain optimal risk factors
through middle age, which had a dramatic effect on the remainder of
their life. An optimal risk factor profile means that a person does not
smoke or have diabetes, has total cholesterol of less than 180
milligrams per deciliter and untreated blood pressure of less than 120
over less than 80.
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