  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.
What's too slow for you may depend on your age and physical condition. 1  Physically active adults often have a resting heart rate slower than 60 BPM but it doesn't cause problems. 2  Your heart rate may fall below 60 BPM during deep sleep.  Elderly people are more prone to problems with a slow heart rate.