In insurance, Big Data could lower rates for optimistic tweeters

Tweet positive: Research suggests a direct link between optimistic posts and a reduced risk of heart disease.

ZURICH:  When people take to Twitter to comment on the great evening they enjoyed with good food and wonderful friends, reducing their monthly insurance bill is probably the last thing on their mind.

But such tweets could help insurers to price premiums for individuals, with research suggesting a direct link between positive posts and a reduced risk of heart disease.