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. Last Updated: 07/27/2016

Men's Clock Ticks Too

LONDON -- Men have a biological clock too, British researchers said this week.

Like women their ability to procreate decreases with age. Scientists at Bristol and Brunel universities in England have discovered that when a man is less than 25 years old the chance of his partner not getting pregnant after a year of trying is about 8 percent.

By the age of 35 it nearly doubles to 15 percent.