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In part two: host Manoush Zomorodi delves into how we met and fell hard for the personal computer—and why we continue to have this committed, yet tortuous relationship. We hear from historian Laine Nooney on how the computer revolution forever changed the way we use our bodies at work, at school and at home.

Manoush also visits the Exercise Testing Laboratory at Columbia University Medical Center where researchers collect data on how her body responds to a day of sitting compared to a day of constant movement breaks.

Click here to find out more about the project: npr.org/bodyelectric

Are you signed up for Columbia's study, or following along with the series? We want to hear your thoughts! Send us a voice memo at bodyelectric@npr.org. Talk to us on Instagram @ManoushZ, and on Facebook @tedradiohour.