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'Testosterone supplements do not improve functioning in older men'

'Testosterone supplements do not improve functioning in older men'
3rd January 2008

Testosterone does not improve the physical or cognitive functioning of older men, according to new research.

A study, published in the Journal of the American Medical Association, claims that although a decline in testosterone is associated with the aging process, men who received a testosterone supplement showed no improvements compared to those who did not.

Researchers from the University Medical Centre Utrecht in the Netherlands conducted the trail on 207 men aged between 60 and 80 years of age.

A random selection of the participants received 80 mg of testosterone daily for sixth months and despite decreased body fat and increased lean body mass, no improvements to mobility or cognition were recorded.

The researchers stated that the study's findings: "Do not support a net benefit on several indicators of health and functional and cognitive performance with six months of modest testosterone supplementation in healthy men with circulating testosterone levels in the lower range."

Recently, a small scale study from the University of Illinois suggested that higher than normal testosterone levels may have detrimental effects on memory and brain function in elderly men.

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