Der Spiegel, Spiegel Interview with Haruki Murakami:
“SPIEGEL: Are you a better writer because you run?
Murakami: Definitely. The stronger my muscles got, the clearer my mind became. I am convinced that artists who lead an unhealthy life burn out more quickly. Jimi Hendrix, Jim Morrison, Janis Joplin were the heroes of my youth — all of them died young, even though they didn’t deserve to. Only geniuses like Mozart or Pushkin deserve an early death. Jimi Hendrix was good, but not so smart because he took drugs. Working artistically is unhealthy; an artist should lead a healthy life to make up for it. Finding a story is a dangerous thing for an author; running helps me to avert that danger.”
