Do jellyfish feel pain?

and can people "live" like jellyfish do? and does it mean jellyfish don't feel the pain and killing and eating them is not a sin?

I'm a 14 year old girl. I'm addicted to pain. I use pain to let go of built up tension, depression, everything. Pain gets me high, and I like it. I've been self harming since is was 7 (in different forms though) Recently, I've started cutting and burning...

I have read numerous studies for and against the idea that fish feel pain. The big argument against it is that for pain to be acknowledged, a neocortex in the brain is absolutely vital; of which fish do not have. A study indicating that they do feel...

Do I force myself to feel the pain or do I let a callous grow? I met my cousin a couple of weeks ago whilst I was in England. She is an amazing person and we became really close over the space of a week. I had to return to Aus and before I left she made...

How true is it that we cant feel pain when drunk ( heavily buzzed ) after a couple of beers or something. To make it clear: suppose somebody sticks a needle behind us, would we feel little pain at that area and not feel the needle. or We would feel the...

Don't get me wrong, I do feel pain, but very little. I used to be a cutter, so I figure that my pain tolerance has become incredible, so naturally when it comes to bruises, or cuts, burns any pain, I hardly feel it, but here's the thing, I can't feel...