Neuroscience

Decoding the chemistry of fear

Ask a dozen people about their greatest fears, and you'll likely get a dozen different responses. That, along with the complexity of the human brain, makes fear—and its close cousin, anxiety—difficult to study. For this ...

Diseases, Conditions, Syndromes

Am I immune to COVID-19 if I have antibodies?

Perhaps the most important question now about COVID-19 is the degree to which a prior infection protects from a second infection by the new coronavirus. This affects vaccine development and herd immunity and is something ...

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