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Testosterone levels declining in American males - study
HealthDay on Yahoo ^ | 10/27/06 | HealthDay

Posted on 10/27/2006 11:14:31 AM PDT by NormsRevenge

FRIDAY, Oct. 27 (HealthDay News) -- The testosterone-fueled American male may be losing his punch.

Over the past two decades, levels of the sex hormone in U.S. men have been falling steadily, a new study finds.

For example, average total testosterone levels in men aged 65 to 69 fell from 503 nanograms/decileter (ng/dL) in 1988 to 423 ng/dL in 2003.

The reasons for this trend are unclear, said researchers at the New England Research Institutes in Waterdown, Mass. They noted that neither aging nor certain other health factors, such as smoking or obesity, can fully explain the decline.

"Male serum testosterone levels appear to vary by generation, even after age is taken into account," study lead author Thomas G. Travison said in a prepared statement.

Testosterone is the primary male sex hormone and plays an important role in maintaining bone and muscle mass. Low testosterone levels have been linked to health problems, including lowered libido and diabetes.

It's normal for men's testosterone levels to peak in their late 20s and then start to gradually decline, experts say. But this study found that overall testosterone levels are lower than they were 20 years ago.

"In 1988, men who were 50 years and older had higher serum testosterone concentrations than did comparable 50-year-old men in 1996. This suggests that some factor other than age may be contributing to the observed declines in testosterone over time," Travison said.

He and his colleagues analyzed blood samples -- along with health and other information -- from about 1,500 men in the greater Boston area who took part in the Massachusetts Male Aging Study. That study collected data in 1987-89, 1995-97, and 2002-04.

"This analysis deals with men who were born between 1915 and 1945, but our baseline data were not obtained until the late 1980s, when the elder subjects were about 70 years old, and the youngest about 45," Travison said.

"Events occurring in earlier decades could certainly help explain our results, if their effects persisted into recent years," he noted.

The findings were published in the Journal of Clinical Endocrinology and Metabolism.

More information

The U.S. National Library of Medicine has more about testosterone.


TOPICS: Culture/Society; News/Current Events
KEYWORDS: american; declining; males; testosterone
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To: NormsRevenge

21 posted on 10/27/2006 11:23:26 AM PDT by TexasCajun
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To: NormsRevenge

Two words: Baby Boomers


22 posted on 10/27/2006 11:23:31 AM PDT by Dead Dog
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To: swain_forkbeard

Soy! Soy is the main culprit, it's full of estrogen and it's in baby formula, lots of foods with soy. And the growth hormones in milk, cheese and etc.

This is also the reason for so many girls going into puberty way too early. This morning GMA had special of 4 year old girl starting into puberty, blood in urine and body odor. Her thyroid was messed up - probably fluride in water I'd think.


23 posted on 10/27/2006 11:24:23 AM PDT by billygoatgruff
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To: NormsRevenge
Testosterone levels declining in American males - study

"That headline is so, like, false!"

24 posted on 10/27/2006 11:25:17 AM PDT by snarks_when_bored
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To: NormsRevenge; Victoria Delsoul

Meanwhile, testosterone levels in male Freepers has increased. Women everywhere are grateful ;-)

Note to self: Be first in line for a grant to study this phenomena. Advertise for lab assistants!


25 posted on 10/27/2006 11:25:28 AM PDT by DakotaGator
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To: NormsRevenge

I think Harry Reid is bringing down the average.


26 posted on 10/27/2006 11:25:28 AM PDT by domenad (In all things, in all ways, at all times, let honor guide me.)
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To: NormsRevenge
This shouldn't come as any news!

In my lifetime - I've seen the feminization of men to the point where it is "cool" to be metro-sexual, homosexual, bisexual, pretty, weak, cowardly, sissified, politically correct and stupid.

Big and proud heterosexual white and black Christian males are the ONLY folks that are permitted subjects of insults or discrimination.

This is one explanation why the backward bastards in the Turd World see us as a easy mark...

Let's pray, that a "Few Good Men" will continue to be enough - cause that's all that's left!

Semper Fi

27 posted on 10/27/2006 11:26:55 AM PDT by river rat (You may turn the other cheek, but I prefer to look into my enemy's vacant dead eyes.)
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To: NormsRevenge

I thought there was just a "study" blaming it on cellphones. . . .


28 posted on 10/27/2006 11:26:58 AM PDT by kaehurowing
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To: Redleg Duke
"Yeah, if they had included you and me, the results would be the opposite."

Yeah, but with both our results, the lady scientists working on the study would've swooned, so I guess it's probably for the best.

29 posted on 10/27/2006 11:27:14 AM PDT by Joe 6-pack (Que me amat, amet et canem meum)
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To: TexasCajun
The current Alec Baldwin is getting to be a fat porky.

Saw him in "The Departed". OK acting, but boy...he does NOT look like that photo anymore.

30 posted on 10/27/2006 11:27:15 AM PDT by Siena Dreaming
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To: GrandEagle

I would like to see a study of Republicans vs Democrats.


31 posted on 10/27/2006 11:27:22 AM PDT by D Rider
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To: NormsRevenge

WHOA! DUDE!

HILLARY AND JANET ALERT

32 posted on 10/27/2006 11:27:38 AM PDT by NaughtiusMaximus (Let's all be Magnificent Bastards. Turn out those Republican votes!)
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To: NormsRevenge
He and his colleagues analyzed blood samples -- along with health and other information -- from about 1,500 men in the greater Boston area

I see a problem with this study right from the get go.

33 posted on 10/27/2006 11:27:54 AM PDT by Disambiguator (If the Democrats were a stock, I would short them.)
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To: DakotaGator
Note to self: Be first in line for a grant to study this phenomena. Advertise for lab assistants!

ROFL

Note to you: Make out reject forms for Helen Thomas, Hillary Clinton and Rosie O'Donnell.

34 posted on 10/27/2006 11:28:02 AM PDT by madison10 (Live your life in such a way that the preacher won't have to lie at your funeral.)
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To: Valpal1

Tofu=estrogen. How many buff Japanese men have you seen lately?


35 posted on 10/27/2006 11:28:06 AM PDT by billygoatgruff
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To: madison10
Note to you: Make out reject forms for Helen Thomas, Hillary Clinton and Rosie O'Donnell.

Good safety point!

36 posted on 10/27/2006 11:29:49 AM PDT by DakotaGator
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To: D Rider

I know a few Democrats that need to be studied.....LOL!


37 posted on 10/27/2006 11:30:57 AM PDT by GrandEagle
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To: Dead Dog; qam1
Two words: Baby Boomers


38 posted on 10/27/2006 11:31:27 AM PDT by kenth (There are three kinds of people in the world. Those who can count, and those who can't.)
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To: NormsRevenge

That explains the Democrats.


39 posted on 10/27/2006 11:32:40 AM PDT by RockinRight (Maintaining a Republican majority is MORE IMPORTANT than your temper tantrum.)
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To: NormsRevenge

Declining in males to levels of females. The sissifying of American males continues.


40 posted on 10/27/2006 11:33:28 AM PDT by caisson71
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