The Conversation

Fight, flight or ... faint? Why some people pass out when they see blood or feel pain

Author: The Conversation USA

There are a few explanations as to why some people faint when they get needles or feel pain. Dave/Flickr, CC BY-SA

Most people find the sight of blood or a hypodermic needle enough to cause some discomfort, but why do some people faint when faced with them? If you’re someone who finds yourself sweating about your upcoming flu jab, you might...

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