Questions with the keyword 'pain'

• What causes pain? I mean how do we know something is painful? by spacenut1982 to Christina, Colin, Jess, Samaneh, Steve Comments: (so far, 3s comments )
• Why is it when hurt youself the surface of your skin bruises? by laineyhowlett12 to Christina Comments: (No comments so far )
• What alters someone’s pain threshold, so why do I have a different pain threshold to other people? by spacenut1982 to Christina, Colin, Jess, Samaneh, Steve Comments: (So far, one comment )