David A. Ellis

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We found no link between smartphone use and mental health. Rawpixel.com/ Shutterstock

November 30, 2020

Heather Shaw, Lancaster University; Brittany I. Davidson, University of Bath, and David A. Ellis, University of Bath

Previous studies showing links between smartphone use and poor mental health are based on flimsy evidence.

Fluky Fluky/Shutterstock

January 17, 2019

David A. Ellis, Lancaster University and Brittany I. Davidson, University of Bath

There’s a lack of scientific evidence supporting claims that digital detoxes actually have any benefit to us.

Hype before evidence. www.shutterstock.com

February 3, 2016

David A. Ellis, Lancaster University and Lukasz Piwek, University of Bath

They’re flying off the shelves but here’s what you need to know about whether fitness tracking devices work.

Researchers have noted a spike in workplace injuries and road accidents as we set the clocks forward. Budimir Jevtic/Shutterstock

October 23, 2015

David A. Ellis, Lancaster University

How daylight savings time could be harming us.