I've got a question for the community at large, but in particular Marnia & Gary. As I've learned more about the science behind the passion cycle I've grown curious as to what other activities have their own physiological cycles. I've learned all about the reboot from cannabis and sex subjectively but I've noticed that other activities also have their own cycles. I'm most curious about the relationship between dopamine and exercise. If dopamine levels increase during intense exercise, does this increase "cause" the brain to think about closing the doors for a little while on the D2 receptors?
To put it more generally, does any intense stimulus to the physiology which exerts itself on the neurochemistry have the potential to bring about a subjective decline in overall feelings of well being?