do you guys get mentally slow?

[apollolux]

It's been said that to process the messages of these subs requires more physical energy usage (e.g. faster glycogen depletion) than a person might normally be accustomed to; where this energy comes from is still up for debate, especially how much comes from which source when which is still an unanswered question.

I myself, for example, have felt fatigued and lacked motivation for a couple of months, but I don't know how much is actually due to sub usage or related to depression symptoms and conditions.