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Frequency. ~10% of people [2] Exploding head syndrome (EHS) is an abnormal sensory perception during sleep in which a person experiences auditory hallucinations that are loud and of short duration when falling asleep or waking up. [2][4] The noise may be frightening, typically occurs only occasionally, and is not a serious health concern. [2 ...
Phantom vibration syndrome or phantom ringing syndrome is the perception that one's mobile phone is vibrating or ringing when it is not. Other terms for this concept include ringxiety (a portmanteau of ring and anxiety), fauxcellarm (a portmanteau of "faux" /foʊ/ meaning "fake" or "false" and "cellphone" and "alarm" pronounced similarly to "false alarm") and phonetom (a portmanteau of phone ...
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. Hypnic jerks are one form of involuntary muscle ...
One hour before you go to sleep, stop drinking fluids. Avoid blue light, too Breus knows it can be soothing for some people to fall asleep with the TV on, but he recommends not looking at the TV ...
The iPhone 14, 15 and 16 models are all capable of connecting to satellites, but iOS 18 is required to send text messages, according to Apple. To make sure your phone is updated, go to Settings ...
Flash blindness is an either temporary or permanent visual impairment during and following exposure of a varying length of time to a light flash of extremely high intensity, such as a nuclear explosion, flash photograph, lightning strike, or extremely bright light, i.e. a searchlight, laser pointer, landing lights or ultraviolet light. [ 1 ]
The NSA recommends rebooting your smartphone weekly to protect against zero-click exploits, which attackers use to eavesdrop and gather data from phones. While rebooting won't completely thwart ...
Flashlight. A set of LED flashlights. The angle-head flashlight (Fulton MX-991U) on the left uses an incandescent bulb, while the adjustable angle-head flashlight (Streamlight Sidewinder) on the right uses LEDs to give white, red, blue, and infrared light. A flashlight (US English) or electric torch (Commonwealth English), usually shortened to ...