It's may not be just women who have a biological clock ...new research shows men have one too.
Here's what you need to know about protecting male fertility - and preventing male infertility.
By Colette Bouchez
The biological clock may no longer be ticking on just the woman's side of the bed. Male fertility is affected by time and a man's age as well.
In fact, if current research is correct, a man's baby-making alarm may start to ring not too long after a woman's chimes its final warning toll -- around age 40.
"I don't want there to be a panic, but I think it's safe to say that the father's age should be one of many factors couples should put into the equation when planning a family," says Karine Kleinhaus, MD, PhD, a researcher at Columbia University who recently spearheaded a study on paternal age and miscarriage.
Over the past decade -- and particularly during the last five years -- studies have been mounting indicating that the age of the father may not only affect male fertility but also the health of the offspring, in more ways than one.
Male Fertility and Risk of Birth Defects
Associations have been made between the father's age and the risk of birth defects and developmental disorders such as autism and Apert's syndrome, as well as mental illnesses like schizophrenia.
Moreover, studies conducted by Kleinhaus and colleagues at Columbia University looked at some 90,000 births and conclude the older a man is when he conceives a child, the more likely his partner is to have a miscarriage -- even when she is young, healthy, and has no other risk factors.
Many believe this is just the beginning of what there is to learn.
"What we know now may be just the tip of the iceberg, particularly regarding birth issues we don't fully understand. We are just beginning to look at the role of a father's age. And as time goes by it's likely we are going to learn a lot more," says Jeremy Silverman, PhD, a professor of psychiatry at Mt. Sinai Medical Center in New York City, and the researcher of a study that associated paternal age with risks of autism.
Next Up: Male Fertility: What Can Go Wrong With Age
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Copyright 20056 -2007 -Colette Bouchez. Any and all use requires the author's explicit permission , which may be assigned or revoked at any time, for any reason. . Any unauthorized use of these articles shall be considered a breech of copyright law.