The scientists found that mice with the suppressed gene had improved heart function, less fibrosis (which makes the heart inflexible) and fewer biological markers of aging than a control group.
The World Health Organization says old age is a major risk factor for /*heart failure*/.
The American Heart Association says 5.7 million Americans have the condition. Nearly 10 out of every 1,000 people over age 65 suffer heart failure every year.
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