[flagged]

"Higher coffee consumption was linked to a more favourable glucose–insulin profile, higher concentrations of total and bioavailable testosterone, and increased levels of sex hormone-binding globulin (SHBG). At the same time, free testosterone and the free androgen index were modestly lower. In women, hormonal associations were more limited and were primarily characterised by higher SHBG and lower measures of free androgens."

- Total testosterone = free + bound to albumin + bound to SHBG

- Bioavailable testosterone = free + bound to albumin

- Free testosterone = free (not bound to any protein)

...aaaand now I got a mild headache. Is this good or bad? Is this why the title says "links" and not "promotes" or "inhibits" or any other word with a concrete negative or positive connotation?