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Anxiety disorders linked to sensitivity to uncertain threat

Anxiety disorders linked to sensitivity to uncertain threat

Increased sensitivity to uncertain threat, or fear of the unknown, is common to many anxiety disorders, including panic disorder, social anxiety disorder and specific phobias, says a study.

Soon, a chemical and biological "sniffer" with unprecedented sensitivity

A team of scientists is developing a chemical and biological sensor that approaches the theoretical limit, which means it would have unprecedented sensitivity.