John Morley, Saint Louis University (IMAGE) Saint Louis University Caption A research team that includes John Morley, M.D., a Saint Louis University geriatrician, found that having low testosterone may put older men at risk for Alzheimer’s disease. The researchers say the next step is to conduct a large study on testosterone to treat Alzheimer’s disease. Credit Steve Dolan Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.