London: Brain can suppress pain when under extreme stress by producing marijuana-like chemicals, scientists have found. Researchers from National University of Ireland Galway (NUI Galway) led by Dr David Finn found suppression of pain during times of fear involves complex interplay between marijuana-like chemicals and other neurotransmitters in a brain region called the amygdala. The study builds on previous breakthrough findings from Finn`s research group on the role of marijuana-like chemicals in the brain`s hippocampus in pain suppression during fear. Pain is both a sensory and an emotional experience and is subject to modulation by a number of factors including fear and stress. During exposure to a high-stress environment or stimulus, pain transmission and perception can be potently suppressed.
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