How much time do you spend on you cell phone?  Spending 50 minutes with a cellphone plastered to your ear is enough to change brain cell activity in the part of the brain closest to the antenna.

But whether that causes any harm is not clear (scientists at the National Institutes of Health said on Tuesday), and the study will likely not settle recurring concerns of a link between cellphones and brain cancer.

What researchers know is brain activity increases in people who were exposed to a cellphone in the area closet to the antenna.

Lucky for me I still have the really "Old Fashioned" brick type cell phone with the 9 inch rubber antenna and I do not think I have too much to worry about.  Now what were we talking about?