I just realized I just hijacked the thread.

I'm sorry.
Back to the original subject...
Yes, I think many need different amounts for different reasons and that we should always watch for signs of abuse, and then addiction. If we're abusing, we may be addicted.
If something is used daily like this, our bodies can become physically dependent, but weaning off really works well if addiction isn't in place.
Those are just my thoughts.
KD