Photo of Deanna Day.

Deanna Day is a writer, editor, and historian living in Philadelphia. Her projects focus on the cultural influence of technology, science, and medicine, with a special emphasis on gender and reproduction.  She is the managing editor of Somatosphere, and is currently working on a book about the history of the thermometer, medical self-tracking, and fertility.


Watches with various health-related symbols featured on the screen: sleep, fitness, mood.

Exercise Without Failure: Building Fitness Apps As Narrative Games

Technologies have politics and games have aesthetics, but neither of these factors are immutable; there might still be time to rewrite the purpose of the iPhone’s accelerometer and motion co-processor.