Ok. You only use up 5% of your brain in your lifetime!! to use it up completely ud have 2 b learnin non stop for at least 10,000 years to use it up. If ur mobile fries ur brain itll fry less than 0.01%!! same goes 4 beer killin off ur brain cells. ur more likly 2 die from smokin!!(Im English so i say mobile instead of cell phone)