Nothing to do with anaesthesia, it's the laying in one position for long periods thus restricting blood flow
Crikey! I must get a pair for my 14 year old son. He's constantly in one position!!! Actually that's not fair, his thumbs get plenty of exercise. Wonderful things those Xboxes!!!
Dr Billy, I have a problem with getting erections. My beast is so big when I get an erection it draws so much blood from the rest of my body I fall unconscious, how can I stop this? Thanks.