Feelings of pain and discomfort are crucial to the survival and evolution of animals, as they help to detect injuries or existential threats and pinpoint their location in the body. Pain signals are produced by nociceptors, sensory neurons that respond to damage to the body and send “threat” signals to the spinal cord.
Study hints at the potentially crucial role of shear stress in the activation of pain sensing neurons

Biochemistry laboratory research, Scientist or medical in lab coat holding test tube with Using Microscope reagent with drop of color liquid over glass equipment working at the laboratory.
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