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The study was first published online on September 26, 2011.
These U.S. researchers wanted to see if having offspring helps, hinders, or has no effect in men when it comes to cardiovascular (heart) health.
Specifically, they wanted to find out if fatherhood has any benefit or hindrance in mortality (death) when it comes to cardiovascular (heart) issues.
They stated, 'Fertility potential and reproductive fitness may reflect a man's future health, given that over one-third of the male human genome is involved in reproduction.'
Thus, they ''¦ sought to determine if offspring number predicts cardiovascular death in the US men.'
The experimenters used data from the National Institute of Health's AARP Diet and Health Study.
In all 137,903 men, between the ages of 50 and 71 years, were studied. The average age of the men was 62.7 years.
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