LSD or lysergic acid diethlamide is a commonly used drug of
teens. LSD is a hallucinogenic drug which effects the nervous
system.  The drug is ingested in many different ways, absorbed
through the skin, taken orally or absorbed through the eye or ear. 
This drug was originally developed by the government of the United
States as a treatment for psychological conditions such as
alcoholism and drug addiction.  In Canada, where experimentation
is not heavily restricted, LSD has been used to reduce the suffering
of terminally ill cancer patients.  The drug was tested for the effects
it would have on autistic children.    This drug induces a
physiological response that is consistent with that of a central
nervous system stimulant.  Little is known about the effects of LSD,
but what is known shows that it is harmful to the nervous system. 
Physically, there is an increase in heart rate, an increase in blood
pressure, dilation of the pupils, and some facilitation of the spinal
reflexes.  
	Once ingested, LSD takes approximately 30 to 60 minutes to
fully onset and the effects last anywhere from six hours to four
days, depending on the dosage.  If taken in large enough amounts,
one can die of an overdose of LSD.  
	Psychologically, LSD has a tremendous effect on a person. 
LSD is an unpredictable drug in which the effects are different each
time it is ingested.  A person under the influence of LSD ifs flooded
with visual experience, as much when the eyes are closed as when
open.  Light is greatly intensified; colors are vivid and seem to
glow; images are numerous and persistent, yielding a wide range of
illusions and hallucinations; details are sharp; perception of spaced
is enhanced; music may evoke visual expressions, and light may
give the impressions of sound.  Quite often, mood swings occur
with unpredictable actions of the person under the influence of the
drug.  A feeling of awareness of one's self is greatly enhanced.  The
lapse of time may slow down or time may pass faster than it literally
is.  A rare occurrence is a feeling of immortality.  This has been
documented in cases where individuals have jumped out of
buildings or jump in front of cars, perhaps to test the feeling of
invincibility.  
	Recent studies have begun to show that LSD may cause
chromosomal damage which could, in future generations, cause
deformation or genetic illnesses.  The studies, done on animals, do
not conclude that LSD could cause deformations, but the possibility
is present.