What Athletes See
Researchers studying the “quiet eye” technique argue that the visual trick is a key part of coordination.
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USA Today Sports / Reuters When Gut Bacteria Change Brain Function
Some researchers believe that the microbiome may play a role in regulating how people think and feel.
Craig Ruttle / AP Joint Pain, From the Gut
Scientists don't know what causes rheumatoid arthritis, but many suspect that the microbiome—the bacteria that live in our gastrointestinal tracts—may be to blame.
Shutterstock / The Atlantic
