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Study of hormone on rats has implications for men

(HealthDayNews) -- A lot of guys will probably be hearing about this study for years to come.

Researchers at the Netherlands Institute for Brain Research, Amsterdam, gave testosterone supplements to middle-aged and elderly rats.

As they reported in the journal Behavioral and Neural Biology, the sex hormone not only failed to reverse the age-related declines in learning, it actually impaired the ability of both groups of rats to retain learned information.

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