Assuming "cursing" as I understand the word to mean, is still "using"
between cycles . . .
I'm as far from experienced, or an expert, as one could get, but I'll
venture my opinion, having never done a "cycle", and we can call this
a SWAG (scientific wild ass guess . . .).
To maintain gains that, perhaps, would otherwise diminish as a result
of testosterone levels that are within "normal" levels, therefore making
the subsequent cycle / gains easier, more readily available as we all
know that there is a direct correlation between muscular mass and
testosterone for instance; the more test you have the more muscle you
can carry.
The effects on ones health (cursing) being dependent upon what one
takes between cycles to maintain and prior usage, medical history, your
diet, and genetic predisposition among other things.
Good question though.