Bleeding, technically known as hemorrhaging or haemorrhaging (see American and British spelling differences), is the loss of blood or blood escape from the circulatory system. Bleeding can occur internally, where blood leaks from blood vessels inside the body, or externally, either through a natural opening such as the vagina, mouth, nose, ear or anus, or through a break in the skin. Desanguination is a massive blood loss, and the complete loss of blood is referred to as exsanguination. Typically, a healthy person can endure a loss of 10–15% of the total blood volume without serious medical difficulties, and blood donation typically takes 8–10% of the donor's blood volume.

Hemorrhaging is broken down into four classes by the American College of Surgeons' Advanced Trauma Life Support (ATLS).

This system is basically the same as used in the staging of hypovolemic shock.

Individuals in excellent physical and cardiovascular shape may have more effective compensatory mechanisms before experiencing cardiovascular collapse. These patients may look deceptively stable, with minimal derangements in vital signs, while having poor peripheral perfusion. Elderly patients or those with chronic medical conditions may have less tolerance to blood loss, less ability to compensate, and may take medications such as betablockers that can potentially blunt the cardiovascular response. Care must be taken in the assessment of these patients.

Leona Louise Lewis (born 3 April 1985) is a British singer and songwriter. Lewis came to prominence in 2006 when she won the third series of the British television series The X Factor.

Lewis has released two albums to date, Spirit and Echo, in 2007 and 2009 respectively. A multi-platinum selling artist and three-time Grammy Award nominee, her most successful single, "Bleeding Love", reached number one in over thirty countries around the world, and was the best-selling single worldwide in 2008. Other notable singles include "Better in Time", "Happy" and "I Got You". She was proclaimed 'Top New Artist' by Billboard magazine in 2008.

Lewis's debut tour, The Labyrinth, took place in 2010, and her third album, Glassheart, is scheduled for release in 2012. It was preceded by "Collide", a single from the album, which became her seventh top-five hit in the United Kingdom. Lewis's net worth was estimated at £12 million in April 2012.

Norman Percevel Rockwell (February 3, 1894 – November 8, 1978) was a 20th-century American painter and illustrator. His works enjoy a broad popular appeal in the United States for their reflection of American culture. Rockwell is most famous for the cover illustrations of everyday life scenarios he created for The Saturday Evening Post magazine for more than four decades. Among the best-known of Rockwell's works are the Willie Gillis series, Rosie the Riveter (although his Rosie was reproduced less than others of the day), Saying Grace (1951), The Problem We All Live With, and the Four Freedoms series. He is also noted for his work for the Boy Scouts of America (BSA); producing covers for their publication Boys' Life, calendars, other illustrations, and for his covers on the Saturday Evening Post, a magazine edited by George Horace Lorimer.

Norman Rockwell was a prolific artist, producing over 4,000 original works in his lifetime. Most of his works are either in public collections, or have been destroyed in fire or other misfortunes. Rockwell was also commissioned to illustrate over 40 books including Tom Sawyer and Huckleberry Finn. His annual contributions for the Boy Scouts' calendars between 1925 and 1976 (Rockwell was a 1939 recipient of the Silver Buffalo Award, the highest adult award given by the Boy Scouts of America), were only slightly overshadowed by his most popular of calendar works: the "Four Seasons" illustrations for Brown & Bigelow that were published for 17 years beginning in 1947 and reproduced in various styles and sizes since 1964. Illustrations for booklets, catalogs, posters (particularly movie promotions), sheet music, stamps, playing cards, and murals (including "Yankee Doodle Dandy" and "God Bless the Hills", which was completed in 1936 for the Nassau Inn in Princeton, New Jersey) rounded out Rockwell's œuvre as an illustrator.