Are there any or is it just sexually frustration
@Nige4532 One might equally ask if there are health benefits of : a conversation, eating a nice meal, a walk on the beach, or watching a good movie. They also won't cure an illness, but they can reduce the stress which makes it harder for the body to fight an illness.
If you smile at a stranger you pass in the street, or wave at a fellow jogger ; you are enjoying the interaction. If you can't do that without feeling sexually frustrated, this site probably isn't for you.
Stress relief, comfort, anxiety relief the list goes on
Sounds like the Monty Python sketch, "What have the Romans ever done for us".