Body's Pain Perception Mapped for First Time

New evidence points to the evolution of the ability for bacteria to grab nitrogen from the atmosphere some 3.2 billion years ago, about 1.2 billion years earlier than thought—with implications for finding extraterrestrial life. Lee Billings reports 

A dwarf galaxy near the Milky Way may consist of more dark matter than regular matter.* Clara Moskowitz reports 

Pain has long been recognised as something of an enigma by scientists and clinicians. It's both a measurable physiological process, as well as deeply personal and subjective. Claudia Hammond meets scientists attending the British Neuroscience Association's Christmas symposium on ...  Show more

One of the most challenging aspects of treating chronic pain is the fact that there’s no objective way to measure it – no number or test like blood pressure or cholesterol. But soon we might have something more specific than the scale of happy face to sad face. Dr. Sanjay Gupta t ...  Show more

Stanford neuroscientist Sean Mackey, MD, PhD reveals pain is highly subjective, shaped by our beliefs and experiences - not just injury signals. He unpacks chronic pain's persistence, promising treatment strategies like brief behavioral therapies, and research toward personali ...

How do you treat a disease where the cause is unknown and each patient’s symptoms are unique? CNN's Chief Medical Correspondent Dr. Sanjay Gupta talks to pain expert Dr. Carmen Green about what causes chronic pain, how it can be treated, and which patients are more likely to get ...  Show more