Bad News About Your Wearable Sleep Tracker

Learn about which sleep trackers are actually accurate; how important closure is for a life transition; and why mirrors flip horizontally, but not vertically.

Study of 9 sleep trackers finds that all but 2 are inaccurate by Kelsey Donk

• You snooze, you lose - with some sleep trackers. (2021). EurekAlert! https://www.eurekalert.org/pub_releases/2021-02/wvu-ysy021721.php
• Stone, J. D., Rentz, L. E., Forsey, J., Ramadan, J., Markwald, R. R., Finomore, V. S., Galster, S. M., Rezai, A., & Hagen, J. A. (2020). Evaluations of Commercial Sleep Technologies for Objective Monitoring During Routine Sleeping Conditions. Nature and Science of Sleep, Volume 12, 821–842. https://doi.org/10.2147/nss.s270705
• Espie, C. (2020) How Do You Measure Sleep? Sleepio. https://www.sleepio.com/articles/sleep-science/how-do-you-measure-sleep/
• That Sleep Tracker Could Make Your Insomnia Worse (Published 2019). (2021). The New York Times. https://www.nytimes.com/2019/06/13/health/sleep-tracker-insomnia-orthosomnia.html

Here's How Important Closure Is for a Life Transition by Sonja Hodgen

• Devitt-NYU, J. (2019, February 25). Better endings help us feel good about what’s next - Futurity. Futurity. https://www.futurity.org/life-transitions-endings-1991932/
• Schwörer, B., Krott, N. R., & Oettingen, G. (2020). Saying goodbye and saying it well: Consequences of a (not) well-rounded ending. Motivation Science, 6(1), 21–33. https://doi.org/10.1037/mot0000126

Why mirrors flip horizontally but not vertically by Ashley Hamer (Listener question from Maria in Ontario, Canada)

• Physics Girl. (2015). Why do mirrors flip horizontally (but not vertically)? [YouTube Video]. In YouTube. https://www.youtube.com/watch?v=vBpxhfBlVLU
• Kaplan, S. (2017, January 23). Dear Science: Why is everything backward in a mirror? The Washington Post. https://www.washingtonpost.com/news/speaking-of-science/wp/2017/01/23/dear-science-why-is-everything-backwards-in-a-mirror/

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