What is Zollinger-Ellison syndrome? Zollinger-Ellison syndrome (ZES) is a rare digestive disorder. If you have ZES, you likely have 1 or more tumors in the first part of the small intestine, the ...
A hypnic jerk is a sudden involuntary twitch or muscle contraction that occurs as you fall asleep. Also known as sleep starts, these hypnic jerks may jolt the entire body or affect only one part, like ...
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