Pain is built in the brain, and that makes it changeable
A Stanford pain specialist, placebo research and an expressive writing protocol all show that context, expectation and emotion shape how much pain we feel. That opens up non-drug tools alongside medical treatment.
What is the difference between nociception and pain, according to Dr. Sean Mackey? Show answer
Nociception is the electrochemical signalling from sensors in the tissue. Pain is the subjective experience the brain creates when it shapes those signals.
What does gate control theory explain? Show answer
Why rubbing an injury helps: touch signals on fast A-beta fibers dampen pain signals in the spinal cord. TENS units use the same mechanism.
What is conditioned pain modulation? Show answer
Pain inhibiting pain: a painful stimulus at a distant site engages brainstem circuits that send inhibitory signals down the spinal cord. In some chronic conditions such as fibromyalgia it does not work properly.
What three psychological routes does Mackey describe for turning pain down? Show answer
Attentional distraction, mindful non-judgmental acceptance, and cognitive reframing, each using different neural circuits.
Which emotions and thought patterns does Mackey say amplify pain? Show answer
Catastrophizing, which he calls one of the biggest predictors of worse pain and poor treatment response, and anger, especially contained, simmering anger.
What does Mackey's hurt versus harm distinction mean? Show answer
Pain can hurt without signalling ongoing damage. His tennis player with a harmless neuroma left his crutches behind once told he could play.
What did Mackey's study of people in early romantic love find? Show answer
Viewing a photo of the beloved significantly reduced pain, more so the more in love people were, through reward circuits instead of the prefrontal route distraction uses.
What route does expectation take in Huberman's account of placebo? Show answer
From the prefrontal cortex to the hypothalamus, then the brainstem, and from there out to the body.
What did the asthma placebo study show? Show answer
The real drug improved both breathing and discomfort. The placebo reduced discomfort, but breathing did not change.
What makes a placebo effect bigger? Show answer
Context: a brand name, foil packaging, capsules over tablets, injections over pills, and most of all an inert humming, beeping machine.
What is Pennebaker's expressive writing protocol? Show answer
Writing continuously for 15 to 30 minutes about the most difficult experience of your life, four separate times, exploring your deepest emotions and thoughts about it.
What four physical sources of headache does Huberman name? Show answer
Muscle tension, dilated blood vessels pressing on the meninges, nerve activation, and inflammation.