- published: 09 Jul 2007
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Dreams are successions of images, ideas, emotions, and sensations that occur usually involuntarily in the mind during certain stages of sleep. The content and purpose of dreams are not definitively understood, though they have been a topic of scientific speculation, as well as a subject of philosophical and religious interest, throughout recorded history. The scientific study of dreams is called oneirology.
Dreams mainly occur in the rapid-eye movement (REM) stage of sleep—when brain activity is high and resembles that of being awake. REM sleep is revealed by continuous movements of the eyes during sleep. At times, dreams may occur during other stages of sleep. However, these dreams tend to be much less vivid or memorable.
The length of a dream can vary; they may last for a few seconds, or approximately 20–30 minutes. People are more likely to remember the dream if they are awakened during the REM phase. The average person has three to five dreams per night, and some may have up to seven; however, most dreams are immediately or quickly forgotten. Dreams tend to last longer as the night progresses. During a full eight-hour night sleep, most dreams occur in the typical two hours of REM.
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Roy Kelton Orbison (April 23, 1936 – December 6, 1988), nicknamed the Big O, was an American singer-songwriter and musician, known for his distinctive, powerful voice, complex compositions, and dark emotional ballads. Between 1960 and 1964, 22 of his songs placed on the Billboard Top 40, including "Only the Lonely", "Crying", and "Oh, Pretty Woman".
The combination of Orbison's powerful, impassioned voice and complex musical arrangements led many critics to refer to his music as operatic, giving him the sobriquet "the Caruso of Rock". His voice ranged from baritone to tenor, and music scholars have suggested that he had a three- or four-octave range. While most male performers in rock and roll in the 1950s and 1960s projected a defiant masculinity, many of Orbison's songs instead conveyed a quiet, desperate vulnerability. He was known for performing while standing still and solitary and for wearing black clothes and dark sunglasses, which lent an air of mystery.