Drop in testosterone not due to ageing
19th June 2013
Declines in testosterone levels are not an inevitable part of ageing, but appear to be driven by obesity and chronic disease, results from a five-year study in SA men suggest.
In a longitudinal study of almost 1600 middle-aged and older men (average age 55), researchers from the University of Adelaide found that testosterone levels declined by 0.8% a year on average.
When they measured testosterone levels the researcher found they declined from 16.2 to 15.5 nmol/L