There are no specific symptoms associated with claims of EHS, and the reported symptoms range widely between individuals. They include headache, fatigue, stress, sleep disturbances, skin prickling, burning sensations and rashes, pain and ache in muscles and many other health problems. In severe cases such symptoms can be a real and sometimes disabling problem for the affected person, causing psychological distress. There is no scientific basis to link such symptoms to<unk>  field exposure. The prevalence of some reported symptoms is geographically or culturally dependent and does not imply "a causal relationship between symptoms and attributed exposure". Many such reported symptoms overlap with other syndromes known as symptom-based conditions, functional somatic syndromes, and IEI (idiopathic environmental intolerance). Those reporting<unk>  will usually describe different levels of susceptibility to electric fields, magnetic fields, and various frequencies of<unk>  waves. Devices implicated include fluorescent and low-energy lights, mobile, cordless/portable phones, and Wi-Fi. A 2001 survey found that people self-diagnosing as EHS related their symptoms most frequently to Cell Sites (74%), followed by mobile phones (36%), cordless phones (29%), and power lines (27%). Surveys of<unk>  sufferers have not been able to find any consistent pattern to these symptoms.
Electromagnetic hypersensitivity
Pacemaker crosstalk
Cardiac aberrancy
Ischemic cascade
Congenital fiber type disproportion
Ventricular dyssynchrony
Coronary vasospasm
Tissue stress