Ms. Taurah added that findings supported evidence from animal studies suggesting that even small doses of ecstasy destroyed brain neurons that produced the important chemical messenger serotonin, which is closely linked to mood. Seven years after the initial damage there was no sign of the neurons repairing themselves. If the "researcher" really said that and was not misquoted, I would have some doubts. I think she is looking for the pineal gland, not neurons.