Human physical appearance

Human physical appearance is the outward phenotype or look of human beings. There are infinite variations in human phenotypes, though society reduces the variability to distinct categories. Physical appearance of humans, in particular those attributes which are regarded as important for physical attractiveness, are believed by anthropologists to significantly affect the development of personality and social relations. Humans are acutely sensitive to their physical appearance, some theorize for reasons of evolution. Some differences in human appearance are genetic, others are the result of age, lifestyle or disease, and many are the result of personal adornment.

Some people have traditionally linked some differences in that personal appearance such as skeletal shape with ethnicity, such as prognathism or elongated stride. Different cultures place different degrees of emphasis on physical appearance and its importance to social status and other phenomena.

Factors affecting physical appearance

Jimmy Fallon

James Thomas "Jimmy" Fallon (born September 19, 1974) is an American comedian, television host, actor, singer, writer, and producer. He is known for his work in television as a cast member on Saturday Night Live and as the host of late-night talk show The Tonight Show Starring Jimmy Fallon. He was born in Bay Ridge, Brooklyn and raised in Saugerties, New York. He grew up with an interest in comedy and music, moving to Los Angeles at 21 to pursue stand-up opportunities.

He was commissioned to join NBC's Saturday Night Live as a cast member in 1998, fulfilling a lifelong dream. Fallon remained on SNL for six years between 1998 and 2004, co-hosting the program's Weekend Update segment and becoming a celebrity in the process. He left the program for the film industry, starring in films such as Taxi (2004) and Fever Pitch (2005). Following his film career, Fallon returned to television as the host of Late Night with Jimmy Fallon on NBC in 2009, where he became well known for his emphasis on music and games. He transitioned from that program to become the sixth host of the long-running The Tonight Show in 2014.

The Tonight Show

The Tonight Show is an American late-night talk show broadcast from the Rockefeller Center in New York City and airing on NBC since 1954. It is the world's longest-running talk show, and the longest running, regularly scheduled entertainment program in the United States. It is the third-longest-running show on NBC, after only the news-and-talk shows Today and Meet the Press.

Over the course of more than 60 years, The Tonight Show has undergone only minor title changes. It aired under the name Tonight for several of its early years, eventually settling on The Tonight Show after the seating of long-time host Johnny Carson in 1962. In later decades, network programmers, advertisers, and the show's announcers would refer to the show by including the name of the host; for example, it is currently announced as The Tonight Show Starring Jimmy Fallon. In 1957, the show briefly tried a more news-style format. It has otherwise remained a talk show throughout its run.

The Tonight Show began broadcasting in 1954. It has had six official hosts, beginning with Steve Allen (1954–57), followed by Jack Paar (1957–62), Johnny Carson (1962–92), Jay Leno (1992–2009, 2010–14), Conan O'Brien (2009–10), and Jimmy Fallon (2014–present). It has had several recurring guest hosts, a practice especially common during the Paar and Carson eras.