The gate control theory of pain, proposed in 1965, focused on chronic pain and postulated that neural gates in the spinal cord can be opened or closed by signals descending from the brain ...

When pain signals are passed along ... This biochemical signal is received by the next nerve cell, that converts the signal back into electricity. Along this chain of information transfer in ...

When pain signals are passed along ... This biochemical signal is received by the next nerve cell, that converts the signal back into electricity. Along this chain of information transfer in ...

You feel pain when special sensory nerve cells send signals to your spinal cord and brain. Once the cause of an injury or illness is treated, the acute pain goes away. But chronic pain doesn't.