Study: Average dad is getting older in US

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Today's American dad is slightly older -- roughly 3½ years -- than his counterpart from four decades ago, according to a study published Thursday in the journal Human Reproduction. The average age of a father of a newborn in the United States increased from 27.4 years old to 30.9 years old between 1972 and 2015, found Stanford University School of Medicine researchers led by Dr. Michael Eisenberg.http://feeds.feedburner.com/~ff/rss/cnn_us?d=yIl2AUoC8zA</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=92A03sTf1_M:K1gfUNpMZF8:yIl2AUoC8zA) http://feeds.feedburner.com/~ff/rss/cnn_us?d=7Q72WNTAKBA</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=92A03sTf1_M:K1gfUNpMZF8:7Q72WNTAKBA) http://feeds.feedburner.com/~ff/rss/cnn_us?i=92A03sTf1_M:K1gfUNpMZF8:V_sGLiPBpWU</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=92A03sTf1_M:K1gfUNpMZF8:V_sGLiPBpWU) http://feeds.feedburner.com/~ff/rss/cnn_us?d=qj6IDK7rITs</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=92A03sTf1_M:K1gfUNpMZF8:qj6IDK7rITs) http://feeds.feedburner.com/~ff/rss/cnn_us?i=92A03sTf1_M:K1gfUNpMZF8:gIN9vFwOqvQ</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=92A03sTf1_M:K1gfUNpMZF8:gIN9vFwOqvQ)
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