The syndrome is associated with intellectual disability, low muscle tone (hypotonia), characteristic facial features, constipation, Hirschsprung disease (an intestinal condition), epilepsy, short stature, small head (microcephalus) as well as malformations of the heart, brain, genitals, urinary tract and eyes.
An electromagnetic pulse (EMP) is an intense burst of electromagnetic (EM) energy caused by an abrupt, rapid acceleration of charged particles, usually electron s. An EMP can contain energy components over a large part of the EM spectrum , from very-low-frequency ( VLF ) radio to ultraviolet ( UV ) wavelength s. A lightning strike produces a localized EMP that gives rise to large electrical current s in nearby wires.
An EMP is generated when Gamma Rays from a high altitude nuclear explosion interact with the atmosphere to produce a radio frequency wave pulse that would hit everything in line of sight of the explosion. A small crude nuclear weapon exploded high above the United States could create a devastating pulse. If an EMP hit a large part of the United States it would not cause just a temporary power outage. It could take months or even years to get power back to most of the United States.