The 289 area code was created as an area code overlay for the Mississauga (Streetsville) area. Unlike the previous solutions, this process did not require the place to be geographically separated by different area codes.
Ionizing radiation is a term used for radiation whose quanta have energy to directly or indirectly ionize (one or more electrons are released from the atom of the given substance) molecules or atoms while passing through matter, hence the name ionizing radiation.
The most common acute side effect of radiation therapy is fatigue, a sense of tiredness or general weakness. It is believed to be caused by the tremendous amount of energy that is used by the body to heal itself in response to radiation therapy.