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.
Paul McCartney Net Worth And Biography. Paul McCartney net worth is $900 million, he is believed to be the richest musician in the world. He is acknowledged as one of the most successful composers and performers of all time, the English singer, multi-instrumentalist, composer and the founding member of the defunct music group 'The Beatles' was born on 18 June 1942 in Liverpool in England.