teratoma. a type of germ cell tumor made up of a number of different types of tissue from one or more of the germ cell layers; it is usually found in the ovary or testis and may be either benign or malignant.
That is why obsession with watching TV can cause some dangerous addictions. The other group of effects, which can be caused by watching too much of television, is connected with possible mental disorders or disturbances. The most spread of those are attention deficit disorder and other problems with emotional health.
Research has shown that there is a correlation between the amount of violence a child sees on TV and the aggressiveness of the child's behavior. One explanation of this correlation is that children who watch a great deal of violence on television have a lack of adult supervision.