but a it gets you high by releasing massive amounts of serotonin into your brian. some people believe that u can damage receptors in your brian that regulate the release of serotonin if used to much. Also since your supply of serotonin is depeleted after you take mdxx people often experience a "comedown" which is usualy includes feelings of tiredness and/or depression in some cases.
First timers dont usualy experience a "comedown" rather a afterglow which is a relaxed/calm feeling the day/s after you roll
for more info go check out the directory on Ecstasy avalible on this site. i will link it to you below
Check out our Directory.
It has a lot of information in it, including a link to a slideshow on how MDMA effects the brain.
A lot of time went into making that thing, it'd be a shame if no body used it.
This link has a lot of information that you may find interesting.