No. Of course we’re all worried about the effect technology is having on us. Studies tell us that just sitting is hurting us, and there are those who feel that holding a radio transmitter to your head for hours every day couldn’t possibly be good for you. On the other hand, your mom probably told you that you’d burn your eyes out if you sat too close to the TV and that turned out not to be true either.
Modern life is full of pitfalls, and the last thing we want to worry about is our modern conveniences rising up against us and hurting us in ways we didn’t imagine, but cell boosters have been tested as safe and effective and there’s no reason to think that if used properly they would cause any problem at all. They put out a similar amount of RF energy to what your wireless router or cordless phone put out.
If you’re worried about frying your brain with a cell booster, don’t. While tests aren’t conclusive as to whether cell phones can hurt you when you hold them to your ear, there’s no reason to think that a cell booster could have any negative effect on you unless you are REALLY REALLY close. Even then the amount of power is pretty tiny, much less than you would have gotten from any cell phone you used in the 1980s or 1990s.