Physical Danger
Possible minor dangers include: neck and back pain from so much sitting, carpal tunnel from so much tapping away at a keyboard, and the danger of going spontaneously insane from the isolation, causing you to leap hysterically from your window. Kidding—all else being equal health-wise, you'll be just fine.
Even if you spend all day listening to exploding artillery shells and detonating hand grenades, you're safe inside your editing room.