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.
Reports vary, but children in the fifth to eighth grades view an average of 4 to 6 hours daily (B. S. Greenberg and Dervin, 1970; Lyle and Hoffman, 1972). Most of the research on the effects of television has been on the cognitive and behavioral results of TV watching.