And though the results aren’t altogether surprising, it’s intriguing to see words grouped by happiness this way. Let’s start with least happy, so we can end on a high note.

They write the kind of sweet notes people love to share on social media, maybe as a deliberate antidote to all the online hate. ... languages also contained more happy than unhappy words.

But he notes that languages exchanging words with one another is also a “natural process,” noting that some 40% of words in English are thought to be borrowed from other tongues.

We all know the words to "Happy Birthday to You" — yet the song's still tough for kids to sing. Now, tucked in the notes of the sisters who wrote it, an easier draft of the song has finally ...

Happy people are thus able to benefit from these perceptions,” said Sonja Lyubomirsky, Ph.D., ... Though Einstein’s simple 17-word note hinted at the theory of happiness, ...

Researchers at Indiana University, Bloomington found that seventh chords - chords with four different notes rather than the usual three - had the highest association with positive words, ...