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A cold-stimulus headache, colloquially known as an ice-cream headache or brain freeze, is a form of brief pain or headache commonly associated with consumption (particularly quick consumption) of cold beverages or foods such as ice cream, popsicles, and snow cones.
The 1968 United States presidential election was the 46th quadrennial presidential election, held on Tuesday, November 5, 1968.The Republican nominee, former vice president Richard Nixon, defeated both the Democratic nominee, incumbent vice president Hubert Humphrey, and the American Independent Party nominee, former Alabama governor George Wallace.
Sleep-talking can be monitored by a partner or by using an audio recording device; devices which remain idle until detecting a sound are ideal for this purpose. Polysomnography (sleep recording) shows that episodes of sleep talking can occur in any stage of sleep. [1] Stress can also cause sleep talking. [3]
Real-time magnetic resonance imaging of the human thorax during breathing X-ray video of a female American alligator while breathing. Breathing (spiration [1] or ventilation) is the rhythmical process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly to flush out carbon dioxide and bring in oxygen.
The speed at which light propagates through transparent materials, such as glass or air, is less than c; similarly, the speed of electromagnetic waves in wire cables is slower than c. The ratio between c and the speed v at which light travels in a material is called the refractive index n of the material (n = c / v ).
On the contrary, stuttering priapism can occur spontaneously at any time of the day, but more commonly so during REM sleep. SP is a subtype of ischemic priapism that is characterized by recurrent, self-limiting, painful erections that often require maneuvers (compression, cold packs or a cold shower, voiding, or exercise, etc.) to aid detumescence.
The causes of the Great Depression in the early 20th century in the United States have been extensively discussed by economists and remain a matter of active debate. [1] They are part of the larger debate about economic crises and recessions .
Cryonics (from Greek: κρύος kryos meaning 'cold') is the low-temperature freezing (usually at −196 °C or −320.8 °F or 77.1 K) and storage of human remains, with the speculative hope that resurrection may be possible in the future. [1] [2] Cryonics is regarded with skepticism within the mainstream scientific community.
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