Shorttitle The electromagnetic waves transmit from the transmission tower. The electric field is induced around the tower. This electric field penetrates inside the human beings. The magnitude od the incident electric field is decreased inside the body due to the absorption of energy. The tissues and cells of the human body absorbs the energy. This amount of energy is explained by the help of specific absorption rate. By the help of this specific absorption rate (SAR), the harmful frequencies of the electromagnetic waves may be declared.