[jayef]

On its face, your statements are nonsense. Please people, do some research on the subject. The seratonin manufacturing, release and uptake mechanisms are not that complicated. What ecstasy does is not that complicated. Anyone claiming that "permanent damage" is done to the brain is not a scientist.

[ffusco]

Its possible that X damages serotonin production or otherwise affects the way the brain chemistry works. However I'm no scientist and any estimate of something as subjective as mood and depression are hard to quantify.

[Timesink]

Please people, do some research on the subject.

With a sneering post like yours, the onus is on you to show why the study cannot possibly be correct.

Anyone with the most basic knowledge of chemistry or pharmacology knows that there are all sorts of compounds out there can cause immediate, permanent damage to a given body organ or part of an organ. The brain is an organ, albeit the least-understood one. QED.

When the world's leading neuroscientists can't yet come to any consensus on the topic, I somehow doubt you have the magic key to all MDMA understanding.