Americans who smoke may soon be hearing a lot more about Zyn. That's the flavored nicotine pouch that's generated billions in ...

A paper published last year in the Journal of the Royal Society Interface described a feather as a masterpiece of engineering, one comprising nine orders of magnitude, from the nanoscale to the meter ...

Pythons can tolerate saltwater and freshwater and have been observed swimming in Florida Bay and Biscayne Bay.

Pulmonary function tests are a group of noninvasive breathing tests that measure how much air your lungs can hold, how quickly you can move air in and out and how efficiently your lungs transfer ...

Are sleep trackers on your phone helping you get a full night's rest? NPR's Life Kit investigates.