Add Yahoo as a preferred source to see more of our stories on Google. A recent video of ducks standing in unison while the rain poured down on them has gone viral. Dozens of these adorable creatures ...

Think about the last time you were excited for or happy about something: what did the sensation feel like in your brain and body? When we experience joy, our brain releases endorphins—a set of ...

High-intensity interval training (HIIT) triggers endorphin release in the brain. Source: Courtesy of Turku PET Centre Researchers in Finland have discovered that exercise-induced endorphin release in ...

Endocannabinoids are better candidates than endorphins to explain "runner's high," a feeling of euphoria after aerobic exercise. Running and other forms of aerobic exercise stimulate the ...