Look beyond age for testosterone decline in over-70s, Aussie study shows

A wide range of factors contribute to the decline of the hormone after 70,WA findings reveal..
HealthDay News

Multiple factors, such as age and BMI, are associated with sex hormone variation among men, according to a review by Perth researchers.

University of WA authors analysed factors associated with variation in male sex hormone concentrations in 11 studies from Australia, Europe and North America, involving some 25,000 men in total.