If distance makes the heart grow fonder, then travel makes the tweeter happier, according to a study conducted the University of Vermont. 

Writes the MIT Technology Review

"'Expressed happiness increases logarithmically with distance from an individual’s average location,'" they say. In other words, the further away we are, the happier we become, as measured by the sentiments of our Tweets.
"Frank and pals analysed 37 million Tweets from 180,000 individuals in 2011 that also gave their location. They then characterised the movement associated with each individual.
"They found that most people Tweet largely from two locations which Morgan and co call work and home. That’s a result that others have also found." 

What was most interesting by far was that the further someone was from these places, the more likely they were to use positive words (and type out laughter, like "haha") than they were to use negatives such as "no," "don't" and "hate." 

Of course, saying you're happy isn't the same as actually being happy, the researchers found, but the analysis sure provides a window into the human psyche, as MIT put it. 

[via MIT Technology Review]