Posted on 11/10/2020 5:30:23 PM PST by billorites
The decline in total testosterone was observed even among men with normal body mass index.
From 1999 to 2016, testosterone levels have declined in adolescent and young adult men (AYA), according to results presented at the 2020 American Urological Association Virtual Experience1.
“Overall male testosterone decline can be attributed to multiple etiologies. The United States has an aging population with older males exhibiting lower testosterone levels. Furthermore, overall population has an increase in comorbidities, including diabetes, which may have cause this testosterone decrease nationally,” Soum Lokeshwar, MD, MBA, incoming urology resident at Yale School of Medicine, New Haven, Connecticut, said during a press briefing.
“However, most of these explanations for testosterone deficiency may be attributed to age. This time-dependent decline in testosterone has not been investigated in adolescent and young adult males,” added Lokeshwar, who was at the University Of Miami Miller School of Medicine, Miami, Florida, at the time of the study.
Testosterone deficiency has a prevalence of 10%-40% among adult males, and 20% among AYA men aged 15-39 years, he added. Therefore, Lokeshwar and colleagues hypothesized that serum total testosterone levels will decline in AYA men.
The investigators used data from the National Health and Nutrition Examination Surveys (NHANES) from 1999 to 2016 to analyze serum testosterone level changes over time in 4045 AYA males. During the study periods, 3 different assays (Biotin-Streptavidin from 1999-2004, IS-Liquid Chromatography from 2011-2012, and High-Performance-Liquid-Chromatography Tandem Mass Spectrometry from 2013 onwards) were used. However, of note, they demonstrate comparable testosterone values with only some additional accuracy in the latest modality, Lokeshwar said.
After controlling for confounders—including year of study, age, race, BMI, comorbidity status, alcohol and smoking use, and level of physical activity—total testosterone was lower among men in the later (2011-2016) versus earlier (1999-2000) cycles (P < 0.001). Mean total testosterone decreased from 1999-2000 (605.39 ng/dL), 2003-2004 (567.44 ng/dL), 2011-2012 (424.96 ng/dL), 2013-2014 (431.76 ng/dL), and 2015-2016 (451.22 ng/dL; all P < .0001).
Elevated BMI was associated with reduced total testosterone levels (P < .0001), with the mean BMI increasing from 25.83 in 1999-2000, to 27.96 in 2015-2016 (P = 0.0006). Lokeshwar noted that even men with a normal BMI (18.5-24.9) had declining total testosterone levels (P < .05) during the same time frames.
Potential causes include increased obesity/BMI, assay variations
According to Lokeshwar, potential causes for these declines could be increased obesity/BMI, assay variations, diet/phytoestrogens, declined exercise and physical activity, fat percentage, marijuana use, and environmental toxins.
“We’ve seen that lower values of testosterone have been associated with increased comorbidities and an increase risk for all-cause mortality. This decline specifically, in these young adult men, with increased obesity may lead to an increase in precocious cancer,” Lokeshwar said, adding such decreases can also result in a lower libido and an increased risk for erectile dysfunction.
“This is especially worrisome in this young adult age group, as many men feel stigma and are less likely to seek care for these low libido and erectile dysfunction.” Lokeshwar added. “Testosterone levels in AYA men are used as the benchmark normal levels for testosterone. This is very scary, because generally, when we think of normal values of testosterone, we treat based upon this age group. This may ultimately lead to the undertreatment of testosterone deficiency, which can have large ramifications and severe consequences.”
Soy Burgers?
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Too much porn out there. The youngsters need to save themselves for the real ladies.
My first thought was it has to be what they are eating. Maybe all the Moosechelle Obama school lunches are kicking in.
Baloney! (LOL) (((Potassium Nitrate is sometimes used in processing cold cuts)))
Those school lunches were so nasty, they could cause mass “shrinkage” just by looking at them.
Yep. Porn is one factor, also I question drug use and or lifestyle changes from outdoor activities to indoor video games.
Less muscle leads to less testosterone.
Cellphones in pockets
***testosterone levels have declined in adolescent and young adult men***
It began in 1968 with the murder of bobby Kennedy. Violence was blamed for all problems and it was decided that the young boys needed to be mentally emasculated and feminized to take some of the manliness out of them.
The powers that be dumbed down mature TV shows to kiddie shows, toy guns disappeared from the toy stores, books and comics were downgraded and covers changed.
Only the movies got a pass as they said they would “police themselves” with a joke of a ratings system. With the Hays Code now gone they began to produce the most vile sex and violent movies to get the coveted “R” rating.
It is still going on today.
Testosterone levels show steady decrease among young US men
Urology Today ^ | July 3, 2020 | Kristie L. Kahl
Posted on 11/10/2020, 5:30:23 PM by billorites
The decline in total testosterone was observed even among men with normal body mass index.
From 1999 to 2016, testosterone levels have declined in adolescent and young adult men (AYA), according to results presented at the 2020 American Urological Association Virtual Experience1.
“Overall male testosterone decline can be attributed to multiple etiologies. The United States has an aging population with older males exhibiting lower testosterone levels. Furthermore, overall population has an increase in comorbidities, including diabetes, which may have cause this testosterone decrease nationally,”
Soum Lokeshwar, MD, MBA, incoming urology resident at Yale School of Medicine, New Haven, Connecticut, said during a press briefing.
”Top psychologist Dr. Sarah Hill revealed that it affects “sex, attraction, stress, hunger, eating patterns, emotion regulation, friendships, aggression, mood, learning, and so many other things.”
She said women on the pill are attracted to less masculine men and are less interested in sex.
That’s because the hormone progesterone, which sends a message to the body that ovulation is not required, is dominant throughout your cycle.
She said: “Rather than experiencing an increased preference for sexy men at high fertility like naturally cycling women do, pill-taking women exhibit an unwavering preference for men with less masculine faces and voices.”
these type of occurrences can have vast influence on society...its not good....we need our men to have testosterone..
They need MOFO
preach it brother....we need babies....
Wood chopping builds testosterone.
Which is why I let the men do it. :)
One substance that was extremely pushed in the second half of the 20th century was progestin along with estrogen in pill form that lingered in the body still when some chick wanted to finally conceive.
I’m a bachelor, but the ladies covered in tattoos, with non original hair color, and dressing like tramps do not appeal to me. I am a bit of a hypocrite since I do have a tattoo, but it is small, and hidden.
Porn has a deleterious effect on society, but decreased serum T isn’t one of them.
Nutrition, weight training, and proper rest are large.
Constant stressors, popping scrips, processed high carb foods, xenoestrogens and phytoestrogens, and lack of sleep and exercise are big contributors.
US OLD guys however!
have lots and lots and lots and get up and go !!
were virile. vigorous and potent! to quote the esteemed G Gordon Liddy
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