A demonstrator smokes cannabis during the Fifth Annual International Cannabis March in London on May 3.
Smoking marijuana will certainly affect perception, but it does not cause permanent brain damage, researchers from the University of California at San
Diego say. REUTERS/Hugo Philpott
"The findings were kind of a surprise. One might have expected to see more impairment of higher mental function," said Dr. Igor Grant, a UCSD
professor of psychiatry and the study's lead author. Other illegal drugs, or even alcohol, can cause brain damage.
UK Reuters Yahoo
[Edited on 28-6-2003 by MiStErBeLLaTrIx]