What is the common bad effects of mdma? what is the way it can cause death?

Stroke,heart attack: Mdma (ecstacy) is a stimulant that is neurotoxic - damages brain cells , impairs cognitive function , seizures, strokes. It can affect cardiovascular system, irregular heart rhythm, rapid heart rate, elevated blood pressure, heart attack.

MDMA: MDMA has many potential adverse effects to include: irritability, aggression, ^ in impulsivity,anxiety, panic attacks, depression, sleep problems, low appetite, V sex drive & pleasure,^ blood pressure, cardiac arrythmia, ^ body temperature, muscle cramps, dehydration, chills, sweats, visual changes as well as seizures, CVA renal or heart failure. MDMA depletes brain of serotonin.