The Chorus recounts the events leading to Antigone's tragedy. Oedipus, Antigone and Ismene's father, had two sons, Eteocles and Polynices. Upon Oedipus' death, it was agreed that each would take the throne from one year to the next. After the first year, however, Eteocles, the elder, refused to step down.
Ultraviolet (UV) radiation from the sun is the number-one cause of skin cancer, but UV light from tanning beds is just as harmful. Exposure to sunlight during the winter months puts you at the same risk as exposure during the summertime, because UVA rays are present in daylight.
Prolonged human exposure to solar UV radiation may result in acute and chronic health effects on the skin, eye and immune system. Sunburn (erythema) is the best-known acute effect of excessive UV radiation exposure.rolonged human exposure to solar UV radiation may result in acute and chronic health effects on the skin, eye and immune system. Sunburn (erythema) is the best-known acute effect of excessive UV radiation exposure.