Effects include increased energy, distorted perception, involuntary teeth clenching, dangerously high body temperature, and depression. Many people are unaware that Ecstasy and supposedly “pure” Molly also often contain not only pure MDMA but other drugs that may be particularly dangerous when mixed with MDMA. A person may experience the intoxicating effects of MDMA within 45 minutes or so after taking a single dose. Those effects include an enhanced sense of well-being, increased extroversion, emotional warmth, empathy toward others, and a willingness to discuss emotionally-charged memories. In addition, people report enhanced sensory perception as a hallmark of the MDMA experience. However, it can also cause a number of acute adverse health effects. For example, while fatal overdoses on MDMA are rare, they can potentially be life-threatening—with symptoms including high blood pressure (hypertension), faintness, panic attacks, and in severe cases, a loss of consciousness and seizure.