Every once in awhile the chain on a chainsaw will bind up and be hard to move, as mine did the other day. Even the engine has to labor to move it. Its not a big deal and very easy to fix. What causes it is small pieces of woodchips and sawdust that get between the drive teeth and the groove (gauge) of the bar.
In this article. An electrophysiology (EP) study is a test that records the electrical activity and the electrical pathways of your heart. This test is used to help determine the cause of your heart rhythm disturbance and the best treatment for you.
The electroencephalogram (EEG) is a medical test used to measure the electrical activity of the brain. A number of electrodes are applied to your scalp. EEG can help diagnose a number of conditions including epilepsy, sleep disorders and brain tumours.