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Sleep inertia is a physiological state of impaired cognitive and sensory-motor performance that is present immediately after awakening. It persists during the transition of sleep to wakefulness, where an individual will experience feelings of drowsiness, disorientation and a decline in motor dexterity.
It may feel like grogginess, sluggishness, drowsiness, and trouble thinking clearly while your body and brain wake up. Is sleep inertia a good thing? Sleep inertia is normal and healthy, says Gowda.
Everyone’s guilty of hitting the snooze button first thing in the morning from time to time. But the reason you feel groggy and under-rested when you wake up may actually be your bedtime routine ...
6 Reasons You Might Be Tired All the Time. While it is normal to feel tired, sometimes it can be something more serious. In fact, fatigue is a key symptom of the following health conditions. 1 ...
A person will typically feel groggy when awakened from this stage, and indeed, cognitive tests administered after awakening from stage 3 indicate that mental performance is somewhat impaired for periods up to 30 minutes or so, relative to awakenings from other stages. This phenomenon has been called "sleep inertia."
A circadian rhythm is an entrainable, endogenous, biological activity that has a period of roughly twenty-four hours. This internal time-keeping mechanism is centralized in the suprachiasmatic nucleus (SCN) of humans, and allows for the internal physiological mechanisms underlying sleep and alertness to become synchronized to external environmental cues, like the light-dark cycle. [4]
Waking up tired is often due to sleep inertia, but sleep environment and habits also play a part. ... Here, doctors provide tips for waking up refreshed. Skip to main content. 24/7 Help. For ...
Individuals with exploding head syndrome hear or experience loud imagined noises as they are falling asleep or are waking up, have a strong, often frightened emotional reaction to the sound, and do not report significant pain; around 10% of people also experience visual disturbances like perceiving visual static, lightning, or flashes of light.