Discover the subtle behavioral indicators that science identifies to recognize psychopathic traits in a brief encounter.

We humans have long viewed ourselves as the pinnacle of evolution. People label other species as “primitive” or “ancient” and ...

In this clip I step up to the table and try to keep up with a table tennis pro in a fast blocking drill. The camera is from my point of view so you can see exactly how little reaction time I get on ...

Hello. This is Mark Kris, from Sloan Kettering, continuing my discussion about the increasing precision of lung cancer therapies and the need for additional testing beyond our routine next-generation ...

Lipoprotein (a) is a low-density lipoprotein that transports cholesterol in the blood. The lipoprotein (a) test — or Lp(a) test — determines the level of this lipoprotein in the blood, and its results ...

Precision medicines and personalized treatments are revolutionizing cancer therapy. Small molecules, biological agents, antibody-drug conjugates and cell-based therapies directed against specific ...

Testing for meningitis may include a physical exam, blood tests, bacterial cultures, imaging, and a spinal tap for cerebrospinal fluid testing to confirm the diagnosis. Seek emergency care for severe ...

Psychology Today's online self-tests are intended for informational purposes only and are not diagnostic tools. Psychology Today does not capture or store personally identifiable information, and your ...

Diagnosing non-Hodgkin’s lymphoma usually starts with a physical exam, then moves to blood tests and imaging to guide next steps. A lymph node biopsy is the gold standard for lymphoma diagnosis, and ...

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