  DMT stands for Dimethyltryptamine, it is a chemical produced in some mammals and plants that can cause intense hallucinogenic effects.It can also be made to be smoked, â¦ snorted, and injected. DMT stands for Dimethyltryptamine, it is a chemical produced in some mammals and plants that can cause intense hallucinogenic effects. It can also be made to be smoked, â¦ snorted, and injected.
There are many different types of abnormal heart rhythm. What type you have depends on where in your heart the rhythm (electrical impulse) starts, and whether it causes your heart to beat too fast, or too slow. The most common abnormal rhythm is atrial fibrillation.
About Tachycardia (Fast Heartbeat) If you have tachycardia, your heart may beat up to 400 times per minute. This can cause dizziness, lightheadedness, or a fluttering in the chest. Tachycardia is a fast or irregular heart rhythm, usually more than 100 beats per minute and as many as 400 beats per minute. At these elevated rates, the heart is not able to efficiently pump oxygen-rich blood to your body.