I am a Clinical Psychologist, and I am compelled to state the obvious in regard to "recreational" meth use. The neurotransmitters in the brain are severely affected by even the first use of methamphetamine. The receptors in the neurological pathways are physically altered once the methamphetamine bonds to the dendrites in the synaptic cleft. Methamphetamine is not a safe substance and users/abusers of this drug are at heightened risk of developing cognitive impairments, not to mention alterations of personality and physical structures of the brain that are irreversible. Many side effects include delusions, hallucinations, ideas of persecution, and DEATH. Given that many college students ascribe their use to "recreation" or "extended study", these are apparent personal fables, which are egocentrisms of adolescents. There are far more reasonable alternatives to obtain "extended study time". Further, I highly advise any "recreational" user to investigate the "ingredient list" for meth at www.tinyurl.com/methlist.