I wonder about the testosterone.

I have never had my testosterone checked. I knew one guy who had has checked, and it was by a female doctor who put him on pills.

I've always wondered where that testosterone level database is?

Maybe they test in the military? I don't know, but would like to know.

I just found a study, but didn't dig into it:

"Travison and his team analyzed data from the Massachusetts Male Aging Study, a long-term investigation of aging in about 1,700 Boston-area men. Data from the men were collected for three time intervals: 1987-1989, 1995-1997, and 2002-2004."