Se trata de la conclusión de un estudio publicado en el "Journal of Clinical Endocrinology & Metabolism" por científicos del Instituto Nacional sobre Envejecimiento (NIA) de Estados Unidos.
Midieron los niveles plasmáticos de la hormona de manera continuada a lo largo de 10 años en un grupo de 417 varones de 50 a 91 años de edad. Durante ese período fueron sometidos a diferentes pruebas que evalúan la función mental.
Aquellos participantes con niveles más elevados de testosterona obtuvieron mejores puntuaciones en algunos de los tests, especialmente en los que medían la memoria visual y verbal, consistentes en recordar listas de palabras e imágenes que les habían mostrado antes. Asimismo, realizaron mejor las pruebas sobre la orientación especial, emparejando formas tridimensionales que rotaban en distintas direcciones.
Se desconoce de qué modo los hormonas influyen en la memoria, aunque algunas investigaciones han observado que sus niveles afectan a la cantidad de sangre que circula en el cerebro, así como a la actividad de las neuronas.
Webs Relacionadas
National Institute on Aging (NIA)
http://www.nia.nih.gov/
Journal of Clinical Endocrinology & Metabolism
http://jcem.endojournals.org/
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