title: Tension headaches: muscle overactivity or psychogenic pain.
mesh_terms: D000293:Adolescent; D000328:Adult; D003937:Diagnosis, Differential; D004576:Electromyography; D005260:Female; D006261:Headache / Q000209:etiology* / Q000523:psychology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009119:Muscle Contraction; D013315:Stress, Psychological / Q000150:complications*