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Neandertals may have had a lower threshold for pain
Pain is mediated through specialized nerve cells that are activated when potentially harmful things affect various parts of our bodies. These nerve cells have a special ion channel that has a key role in starting the electrical impulse that signals pain and is sent to the brain. According to a new study by researchers at the Max Planck Institute for Evolutionary Anthropology in Germany and the Karolinska Institutet in Sweden people who inherited the Neandertal variant of this ion channel experience more pain.