from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. That induces sleep
from The Century Dictionary and Cyclopedia
- Relating to or causing sleep; hypnotic.
Sorry, no etymologies found.
The most common time for people to experience these myoclonic twitches is when they are falling asleep, and the occurrence is called a hypnic jerk.
Now, next time I'm sitting next to someone on the bus, or sleeping next to someone who has a full-body spasm while dozing off, I fully reserve the right to call them a hypnic jerk.
It's also allowing me to think about things I might not have paid much attention to before, like hypnic jerks and recurring dreams.
Docs have also linked hypnic jerks to anxiety, noise, fatigue and genetic disposition.
It actually sounds more like a hypnic or myoclonic jerk response which is common and normal.
John flinches at the name, and the way they're pressed together means it's impossible for Cam to miss, though it's barely discernible, a muscle twitch that could be easily dismissed as an hypnic jerk.
Some people also have daytime naps interrupted by hypnic headaches.
In other cases, nighttime headaches are actually hypnic - or "alarm clock" - headaches.