Tried some x @ this party.

Brain imaging research in humans indicates that Ecstasy causes injury to the brain, affecting neurons that use the chemical serotonin to communicate with other neurons. The serotonin system plays a direct role in regulating mood, aggression, sexual activity, sleep, and sensitivity to pain. Many of the side effects users face with Ecstasy use are similar to those found with the use of cocaine and amphetamines: Psychological Ecstasy side effects, including confusion, depression, sleep problems, drug craving, severe anxiety, and paranoia - during and sometimes weeks after taking Ecstasy. Physical Ecstasy side effects such as muscle tension, involuntary teeth clenching, nausea, blurred vision, rapid eye movement, faintness, and chills or sweating. Increases in heart rate and blood pressure, a special risk for people with circulatory or heart disease.

Also, there is evidence that people who develop a rash that looks like acne after using Ecstasy may be risking severe side effects, including liver damage, if they continue to use the drug. Research links Ecstasy use to long-term damage to those parts of the brain critical to thought and memory. One study, in primates, showed that exposure to Ecstasy for 4 days caused brain damage that was evident 6 to 7 years later.

MDA, the parent drug of MDMA (Ecstasy), is an amphetamine-like drug that has also been abused and is similar in chemical structure to Ecstasy. Research shows that MDA also destroys serotonin-producing neurons in the brain. Ecstasy also is related in its structure and effects to methamphetamine, which has been shown to cause degeneration of neurons containing the neurotransmitter dopamine. Damage to these neurons is the underlying cause of the motor disturbances seen in Parkinson's disease. Symptoms of this disease begin with lack of coordination and tremors and can eventually result in a form of paralysis.