It is not terribly uncommon to find contradictory conclusions when it come to creativity research. However, adding fame to the mix increases the variation in finding because fame is something the individual does not control. Granted there are some creative people who purposely hide their works (such as Emily Dickinson) and others who spend more time flaunting their work than creating it (like Salvador Dali). However, the fame is usually due to the ideas of the society about the creative person.
Exactly how does fame affect the longevity of he artist. Despite being from Australia, C. R. Epstein and R. J. Epstein, decided to use the New York Times as the gauge of fame. Under the assumption that anybody with an obituary in the New York Times had obtained some degree of fame in their field, they examined the age at death and occupation of these people to see if there was a correlation between types of careers and lifespan. (published in QJM: An International Journal of Medicine)
It was no surprise to see creative performers, such as musicians and actors, die at the youngest age. The shocker is that the median age at death for this group was as old as 77.1 years. (These are people famous in New York and not Hollywood.) I tend to recall the notoriety of performers who died young in mid-career because their names are splashed across the media. Actors and musicians often stop performing long before they reach their seventies. I tend to forget about these older performers, except when I hear that one has just died. Although I am occasionally surprised to see some alive and still performing with their names emblazoned on a casino billboard in Oklahoma.
Athletes were the next group to go at an average of 77.4 years, then artists, writers and composers (78.5 years). These type of creative people lived longer than performers, but not much. To put this whole study in perspective you need to realize most of the obituaries in the New York Times were for men, and the average life expectancy for a male in America is 75.6 years. The individuals in this population were not just well known in their fields, they were wealthier and with wealth comes another set of parameters for longevity. However, the women in this study died at an average of 78.8 years, younger than female average of 80.8.
The next study shows how longevity seems to increase chances for fame in the very group whose life is most shortened by it–actors. This research showed the life span of all those ever nominated for an Academy Award in a leading or supporting role compared to life span of those in the acting in the same movies, and born in the same eras who never achieved this distinction. In total, the life span of 1649 performers were analyzed to show that Academy Award winners lived 3.9 years longer than the other actors. However, the award winners–at 79.7 years, and the non award winners–at 75.8 years, lived average life spans. Performers with longer careers participated in more films. 
However, when the lifespan of screenwriters was examined, the reverse was true. Academy Award winning screenwriters lived 3.6 years less than less famous screenwriters (74.1 versus 77.7 years). But you may have noticed something else was reversed. These statistics, are based on fame in California instead of recognition in New York.
So can any conclusion to be drawn on how creative careers or fame affects longevity? Only that most creative people fare as good or better than the average populations.
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How do artistic careers affect longevity?