Chronic Fatigue and Immune Dysfunction Syndrome. Also know as CFS.

Chronic Fatigue syndrome. Also known as CFIDS

Debilitating and complex disorder. It is characterised by profound fatigue lasting at least six months and when bedrest does not help; weakness; muscle pain; impaired memory; and sometimes insomnia.

Ability to know, think, learn, judge, be aware.

A metabolic disease characterised by high blood sugar and insufficient insulin resulting in tiredness or fatigue in the body.

Regulates production of substance P.

One of the body’s painkillers, an opioid chemical produced to lower pain. One site of production is the brain.

Lessened capability to work, reduced efficiency of achievement with weariness and tiredness.

Impaired cognition and memory function.