You may find that there is no scientific reason girls and boys pierce their ears, it is just for glamour reasons. It is not dangerous and you don't get a disease from it. The worst that can happen is that it gets infected, you have to let it heal and let it heal again.
Girls pierce ears for fashion or cultural reason. There is no scientific reason for it.
When ears are pierced, the earring is less likely to be painful to wear. Those who do not have pierced ears must wear a pinch type earring which can hurt the ear. Piercing the ear gives a means to "hang" the earring in a substantial bit of fat. It is less painful than the alternative.
It's said that a piercing in the tongue helps improve stimulation during oral sex. Men find it sexy for that sheer reason.
It is really just jewlery. Just like necklaces, and braceletes (etc.) Its a "fashion" thing.
increasing air pollution
its nothing but the increasing population and traffic.
gives the ball more speed/spin
The steam is released. The steam helps to cook the food by steaming it, so removing rather than piercing will mean the food will take longer to cook through. The reason we have to pierce the film is because the steam can build up and cause the food to pop.
The size that is used by a professional body piercer in a licensed and inspected facility that conducts body piercing services. Listen this is not a venue to provide "how to" information that can lead to serious personal injury in the hands of the public. Wikianswers is not meant for this sort of Q and A. If you want the piercing done, see a professional and pay the money to get it done right the first time. Once you pierce the tissue and screw it up with your attempt to have a navel piercing, you will have left a professional body piercer and mess to fix and it will never look right or pretty. See a professional body piercer for your piercing needs. Age limits are there for a reason, generally it has to do with development and maturity to look after a piercing correctly.
its cool.
Each problem has a scientific reason.
for the same reason anyone would want to get any kind of piercing
actually it has no scientific reason behind it ,it is just said cause it makes you get away from your studies but it really has no effect on your brain
scientific reason of ineffective airway clearance