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  2. Hypnic jerk - Wikipedia

    en.wikipedia.org/wiki/Hypnic_jerk

    A hypnic jerk, hypnagogic jerk, sleep start, sleep twitch, myoclonic jerk, or night start is a brief and sudden involuntary contraction of the muscles of the body which occurs when a person is beginning to fall asleep, often causing the person to jump and awaken suddenly for a moment.

  3. Health effects from noise - Wikipedia

    en.wikipedia.org/wiki/Health_effects_from_noise

    Noise has been associated with important cardiovascular health problems, particularly hypertension, as it causes an increase in levels of stress hormones and vascular oxidative stress. [2] [20] [21] [22] Noise levels of 50 dB(A) or greater at night may increase the risk of myocardial infarction by chronically elevating cortisol production. [23 ...

  4. 9 Weird Symptoms Cardiologists Say You Should Never Ignore

    www.aol.com/lifestyle/9-weird-symptoms...

    People who are experiencing aortic dissection, meanwhile—a tear in one of the body’s major arteries—describe sudden, stabbing pain in the middle of the chest that radiates to their back.

  5. Visual snow syndrome - Wikipedia

    en.wikipedia.org/wiki/Visual_snow_syndrome

    In these cases, visual snow is a normal reaction of the body, related to the way photoreceptors (rods) and neurons respond to weak or insufficient stimuli. [ citation needed ] However, if visual snow becomes persistent and continuous — especially if it is accompanied by other symptoms, such as headaches, difficulty focusing, or intense visual ...

  6. Doctors Say This Type Of Noise Is Best For Deep Sleep - AOL

    www.aol.com/doctors-type-noise-best-deep...

    Small and easily portable, this sound machine includes three sound options so you can find the right fit for you: bright white noise, deep white noise, and gentle surf. $19.99 at Amazon Restore 2 ...

  7. Doctors Say This Nighttime Behavior Can Be A Sign Of Dementia

    www.aol.com/lifestyle/doctors-nighttime-behavior...

    There’s a difference between being totally over your day and sundowning. In addition to the symptoms listed above, sundowning can include verbal or even physical outbursts, Elhelou says.

  8. Catathrenia - Wikipedia

    en.wikipedia.org/wiki/Catathrenia

    Catathrenia or nocturnal groaning is a sleep-related breathing disorder, consisting of end-inspiratory apnea (breath holding) and expiratory groaning during sleep.It describes a rare condition characterized by monotonous, irregular groans while sleeping. [1]

  9. Cerebral arteriovenous malformation - Wikipedia

    en.wikipedia.org/wiki/Cerebral_arteriovenous...

    Other common symptoms are a pulsing noise in the head, progressive weakness, numbness and vision changes as well as debilitating, excruciating pain. [4] [5] In serious cases, blood vessels rupture and cause bleeding within the brain (intracranial hemorrhage). [a] In more than half of patients with AVM, this is the first symptom. [7]