100 sample size is too small to interpret anything. Another point that should be considered is spread of the 30 minutes talk time, Is it spread in the same manner? Now we have come to a stage where usage cell phones can not be avoided.
RE:30 mins/day on mobile may harm hearing
by Shikhar Srivastava on Aug 30, 2007 05:14 PM Permalink
laxshmimadam,if we can not avoid then atleast we can minimum for the sake of our children who are just enjoying the new word.Mobile is only for communication not for conversation.--vivek from kolkata
