Long-term effects

Research indicates that very few people use ecstasy for a long period of time. This may be due to the severity of undesirable effects, which tend to increase the longer ecstasy use continues, while the pleasurable effects diminish. A person who uses ecstasy regularly may find that they are not eating or sleeping enough and are neglecting their health. They may become "run down", have reduced energy levels and be more vulnerable to colds, 'flu and infections.

Currently, much research is being undertaken to investigate the effects of ecstasy on the brain. There is limited evidence suggesting that ecstasy may cause damage to some parts of the brain.