The mastery hypothesis: the mere fact that they are exercising makes patients feel like they have achieved something, cheering them up much as learning a new hobby or achieving a certain goal might cheer them up.
That sounds like B to me.
A transvaginal ultrasound is where a probe goes up into the vagina/cervix instead of using the ultrasound jelly and wand on the stomach.
So the brain and spinal cord are in the CNS and any nerve outside of the brain and spinal cord are in the PNS.
These are the tears produced in response to that strong emotion you may experience from stress, pleasure, anger, sadness and suffering to indeed, physical pain. Psychic tears even contain a natural painkiller, called leucine enkephalin – perhaps, part of the reason why you might feel better after a good cry!
People generally cry more than others becuase they are more emotional.
Hallucinogen is the answer to your question
