Andrew Huberman· PhD
Certain things like fibromyalgia, for instance, which is whole-body pain, relate to too little inhibition. In the brain, you have excitation and inhibition. They come from different sources of neurons. The inhibition is mainly from GABA and glycine and things like that. In fibromyalgia, there's too little central, within the brain, modulation of the pain responses so that people experience whole-body pain.