Doctors and scientists aren't really sure why they happen, but they have a few theories. One theory is that your brain misunderstands the sensation of your muscles relaxing as you drift off to sleep. It's normal for the muscles to relax, but the brain gets confused, and, for a minute, thinks you're falling. In response, the brain causes your muscles to tense up so you catch yourself before you fall down.
The former Beatle Paul McCartney has married American heiress Nancy Shevell at Marylebone register office in London. The couple waved to crowds packed behind security barries after they made the short drive from Sir Paul's north London home to the venue.
A magazine discussing the rumour.  Paul is dead  is an urban legend and conspiracy theory suggesting that Paul McCartney of the English rock band the Beatles died in 1966 and was secretly replaced by a look-alike.he funeral procession on the cover of Abbey Road. Various clues were used to suggest the following story: three years previously (on 9 November 1966), McCartney, after an argument during a Beatles' recording session, had angrily driven off in his car. He had crashed it and died as a result.