Spector sees this current version of the Zoe app as a giant citizen science project. Users can sign up to different studies, which involve answering questions through the app. Current studies include investigations into the gut microbiome, early signs of dementia, and the role of immune health in heart disease. Before the pandemic, recruiting hundreds of thousands of people for a study would be nearly impossible, but the Zoe app is now a huge potential resource for new research. “I’d love to see what happens when 100,000 people skip breakfast for two weeks,” says Spector.
People who reported Covid symptoms aren’t automatically included in these new studies. Some 800,000 people
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