But this can be painful because they may still have working pain neurons. (newscientist.com)
In menopause, low estrogen levels are thought to damage bitter taste buds in the mouth, setting off the surrounding pain neurons. (34-menopause-symptoms.com)
To explore the idea, he dissected the brains of rats, staining both ipRGCs and pain - signaling neurons to trace their paths.The ipRGCs connect to pain neurons in the thalamus, he found, suggesting that exposure to light could disturb pain - signaling neurons as well. (discovermagazine.com)