Hmm just what I'm an expert with, well teen drug abuse can stunt your growth and your physical and mental development, also teen drug abuse can possibly take your life 2 years ago on may 23rd (2010) I lost my 17 year old cousin Morgan Denny to teen drug abuse, drugs are deadly once you get addicted you will never stop.
There are several problems that are associated with teens when they abuse drugs, for instance, drugs can affect the liver, causing a lot of problems to the body. In addition, they can lead to loss of memory, weakening of the joints and can make one an addict.
Drugs do great damage to teens, Freshman. The worst long term damage is to the brain. The brain is still growing and developing, right on up to the age of 21 or so. When you dump a bunch of chemicals into the brain, which runs on the body's natural chemicals, it really gums up the works, and can result in permanent brain disability.
A teen's brain is busy forming new connections (synapses) that will serve you for the rest of your life. Doing drugs can interfere with this process, causing problems with forming memory and other functions. I can't imagine that using drugs could be so important to a teen that they would risk the functioning of their brains, but they do it every day. Teens have little foresight, which means that they can't think in terms of even five years down the road, let alone imagine a lifetime of years.