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March 2007 Archives

March 7, 2007

Tips on Male Fertility Issues

The following article from the New York Times raises some interesting issues regarding men and their fertility clock, which has commonly been thought of as a “woman only” concern.

I like to offer the following tips on male fertility issues:

1. STAYIN’ ALIVE. Sperm can live for up to 72 hours in the human body, impregnating a woman as late as three days after the fact. Sperm can also survive in a lab for many days.
2. NEW GENERATION. Sperm have a lifecycle of 74 days, with another 20 days or so to get out through the ducts. Thus every 90 days sperm regenerates. If sperm are negatively affected by environmental factors, it’s best to wait for the next cycle of sperm to develop in order to maximize fertility.
3. STRONG, YET SENSITIVE. Sperm are sensitive creatures. They are affected by many environmental factors including toxins and pesticides.
4. TEMPERATE TESTICLES. These little miracles maintain a temperature of one degree less than body temperature and are sensitive to heat, which leads us to…
5. BOXERS ARE BEST. Those “tighty whitey” underwear are not sperm-friendly. They increase heat to the area, affecting sperm quality for its entire three-month cycle.
6. AVOID HOT TUBS. Sperm like it cool.
7. LAPTOPS AND LAP DOGS BE GONE! Sperm will wilt with all that excessive heat pouring over them
8. FREEZER-FRIENDLY. Sperm can survive for decades if it is necessary to preserve them for future use due to illness or family planning needs.
9. A LITTLE GOES A LONG WAY. The first moments are crucial. Sperm can impregnate even if a man does not fully ejaculate because 90 percent of the sperm are poised for action in the first few drops that are released.
10. BUTT OUT. Cigarette smoke constricts blood vessels, and negatively affects sperm by altering nutrient intake & oxygen consumption.


From the New York Times,

________________________________________
February 27, 2007
It Seems the Fertility Clock Ticks for Men, Too
By RONI RABIN
When it comes to fertility and the prospect of having normal babies, it has always been assumed that men have no biological clock — that unlike women, they can have it all, at any age.
But mounting evidence is raising questions about that assumption, suggesting that as men get older, they face an increased risk of fathering children with abnormalities. Several recent studies are starting to persuade many doctors that men should not be too cavalier about postponing marriage and children.
Until now, the problems known to occur more often with advanced paternal age were so rare they received scant public attention. The newer studies were alarming because they found higher rates of more common conditions — including autism and schizophrenia — in offspring born to men in their middle and late 40s. A number of studies also suggest that male fertility may diminish with age.
“Obviously there is a difference between men and women; women simply can’t have children after a certain age,” said Dr. Harry Fisch, director of the Male Reproductive Center at New York-Presbyterian Hospital/Columbia University Medical Center and the author of “The Male Biological Clock.”
“But not every man can be guaranteed that everything’s going to be fine,” Dr. Fisch said. “Fertility will drop for some men, others will maintain their fertility but not to the same degree, and there is an increased risk of genetic abnormalities.”
It’s a touchy subject. “Advanced maternal age” is formally defined: women who are 35 or older when they deliver their baby may have “A.M.A.” stamped on their medical files to call attention to the higher risks they face. But the concept of “advanced paternal age” is murky. Many experts are skeptical about the latest findings, and doctors appear to be in no rush to set age guidelines or safety perimeters for would-be fathers, content instead to issue vague sooner-rather-than-later warnings.
Article continues, for the full article, please see the link below (subscription may be required):http://www.nytimes.com/2007/02/27/health/27sper.html?_r=1&ref=science&oref=slogin

About March 2007

This page contains all entries posted to Dr. Werlin's Fertility World in March 2007. They are listed from oldest to newest.

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