<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.utafiti unaonyesha kwamba wanaume wenye uwiano mkubwa wa testosterone jumla wana matukio ya kupunguzwa kwa ugonjwa wa alzheimer.  <response>: research reveals that males with greater proportions of total testosterone have a lowered occurrence of alzheimers disease. 