A systematic study that combines both theory and experiment now provides direct evidence for the existence of anion–π interactions in compounds that facilitate the transport of anions across ...

A metabolism test provides a snapshot of certain hormone levels to understand how your body converts calories into the energy that fuels every physical, biological, and mental activity. These tests ...

Vertigo is an unpleasant symptom triggered by a false sensory signal from your balance system to your brain that your surroundings are spinning, tilting, or moving, which can make you feel dizzy or ...

The CDC counts at least 7.5 million illnesses so far this season As flu season continues to rise across the United States this holiday season, it may be worth considering an at-home test for the ...

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 ...

DNA (deoxyribonucleic acid) is the nucleic acid polymer that forms the genetic code for a cell or virus. Most DNA molecules consist of two polymers (double-stranded) of four nucleotides that each ...

Health Tests How well are you juggling the pillars of good health, including sleep, diet, exercise, relationships and stress management? Check in with yourself today! Each quiz contains 20 questions ...