...But the authors insist that supplementing testosterone would not help! LOL!
**broken link removed**
(SOURCE: Journal of Clinical Endocrinology & Metabolism, October 2007)
"The study shows only an association between low testosterone and earlier death -- not a cause-and-effect relationship, lead author Dr. Gail A. Laughlin told Reuters Health. What's more, there was no evidence that having above-average testosterone levels gave men any longevity advantage.
"We cannot recommend that any man take testosterone based on these results," Laughlin stressed."
It's amazing to me that Viagra can cause blindness, heart attacks and other ailments after a few doses and it's a legal supplement. Yet testosterone is the virtual fountain of youth for men and it's illegal.
Not only that! That's just the tip of the iceberg! Even your mental health depends on it! Yeah, but hey what do these endo guys know anyway huh? Check this out...
Longitudinal Assessment of Serum Free Testosterone Concentration Predicts Memory Performance and Cognitive Status in Elderly Men
Laboratory of Personality and Cognition (S.D.M., A.B.Z., S.M.R.) and Laboratory of Clinical Investigation (E.J.M., S.M.H.), National Institute on Aging, National Institutes of Health, Gerontology Research Center, Baltimore Maryland 21224; and Laboratory of Clinical Investigation, National Center for Complementary and Alternative Medicine, National Institutes of Health (M.R.B.), Bethesda, Maryland 20892
Participants were volunteers from the Baltimore Longitudinal Study of Aging, aged 50–91 yr at baseline T assessment.
Four hundred seven men were followed for an average of 10 yr, with assessments of multiple cognitive domains and contemporaneous determination of serum total T, SHBG, and a free T index (FTI). We administered neuropsychological tests of verbal and visual memory, mental status, visuomotor scanning and attention, verbal knowledge/language, visuospatial ability, and depressive symptomatology. Higher FTI was associated with better scores on visual and verbal memory, visuospatial functioning, and visuomotor scanning and a reduced rate of longitudinal decline in visual memory.
Men classified as hypogonadal had significantly lower scores on measures of memory and visuospatial performance and a faster rate of decline in visual memory. No relations between total T or the FTI and measures of verbal knowledge, mental status, or depressive symptoms were observed.
These results suggest a possible beneficial relationship between circulating free T concentrations and specific domains of cognitive performance in older men.
The results of the present study demonstrate
a substantial association between long-term endogenous serum FTI calculations and selected aspects of cognitive processing in nondemented older men, suggesting a protective effect on some aspects of cognition. Higher FTI values, albeit within the normal range, were associated with better performance on measures of visuospatial processing, visual memory, visuomotor scanning, and multiple measures of verbal memory. No substantial relationships were found between circulating T or FTI concentrations and measures of mental status, verbal knowledge, or depression. Moreover, when men were classified as either hypogonadal or eugonadal based on their FTI, hypogonadal men had lower cognitive status for measures of visual and verbal memory, visuomotor scanning, and visuospatial rotation.
http://jcem.endojournals.org/cgi/content/full/87/11/5001
.gif "IP Gear")
