Is cognition modified by large but temporary changes in sex hormones in men?
A significant change in sex hormone status, including complete hypogonadism, does not modify cognition in men. These findings, along with studies that show a risk for neurodegenerative disease in those with low testosterone, suggest that sex hormone status may be important for neuroprotection in aging but not modulation of normal day-to-day cognitive function.
Our results suggest that in children with severe viral respiratory infection, hospital acquisition of infection is associated with increased mortality even after adjusting for chronic medical conditions that predispose to an increased risk of complications from viral illness.