A single night of taking the drag Ecstasy can cause serious brain damage and hasten the (62) of Parkinson’s disease, scientists say．Just two to three Ecstasy tablets—a quantity that thousands of clubbers take during raves—can permanently (63) brain cells that affect movement and (64) , according to American research that (65) the drug to Parkinson’s for the first time． A study by a team at Johns Hopkins University in Baltimore, Maryland, (66) monkeys and baboons found that both species of primate (67) irreversible damage to key cells (68) dopamine neurons, which are lost in Parkinson’s, after receiving three low doses of Ecstasy at three—hour (69) ． The study is particularly significant (70) baboons are one of the best animal models for the human brain．George Ricaurte, who led the research, said that widespread (71) of the drug may already be (72) victims of such neurological damage．"The most troubling (73) is that young adults using Ecstasy may be (74) theft risk for developing Parkinsonism as they get older．" Alan Leshner, a former director of the US National Institute on Drug Abuse, said："This study emphasizes the multi—faceted damage that Ecstasy call do (75) users．We’ve long known that repeated use damages serotonin brain cells．This study shows that even very (76) use can have long-lasting effects (77) many different brain systems．It sends an important message to young people：don’t (78) with your own brain．" Janet Betts, the Essex mother whose daughter Leah died after a single Ecstasy tablet in 1995, said："This comes as no (79) ．People can’t see the effects at first, and they’re in permanent (80) , saying it’s not going to happen to them．But we’ll see the (81) later, just as we have with smoking．\