According to the authors of a study just published in the journal Social Science & Medicine, reading books is correlated with a longer life:
"A 20% reduction in mortality was observed for those who read books, compared to those who did not read books. Further, our analyses demonstrated that any level of book reading gave a significantly stronger survival advantage than reading periodicals. This is a novel finding (in both senses of the word), as previous studies did not compare types of reading material; it indicates that book reading rather than reading in general is driving a survival advantage."
Read the full study via ScienceDirect: http://tinyurl.com/j6azydg