What Types of Radiation Are There? The radiation one typically encounters is one of four types: alpha radiation, beta radiation, gamma radiation, and x radiation. Neutron radiation is also encountered in nuclear power plants and high-altitude flight and emitted from some industrial radioactive sources. Alpha Radiation.
Fatigue: A condition characterized by a lessened capacity for work and reduced efficiency of accomplishment, usually accompanied by a feeling of weariness and tiredness. Fatigue can be acute and come on suddenly or chronic and persist.
Fatigue is a common symptom in many illnesses and daily routines. It becomes a concern when it is not relieved by rest, good nutrition and a reduction in the stress level. A sudden onset of extreme fatigue from an unknown cause indicates the need to see a health care provider for a medical diagnosis. The pattern and extent of the fatigue are important criteria in determining a diagnosis.