Acetylcholine (ACh) rechallenge may be a novel method to improve detection of coexisting coronary spasm endotypes, and at the same time, assess the treatment response to nitrate-based therapies, a new ...

What Are Hiccups?- Hiccups are sudden, involuntary spasms of the diaphragm, the muscle located between the lungs and stomach.- This spasm pulls air into the throat, causing the vocal cords to close ...

A cramp or spasm happens when a muscle contracts involuntarily. It’s a very common sensation that many of us experience from time to time. Because there are several muscles that control the movements ...