Bookworm longevity!

Those who enjoy reading books can expect to have more time to do so.
A cohort study recently combined the data of 3,635 people to assess the impact of various reading patterns and longevity.

Engaging the mind in book reading was shown to maintain cognitive status and increase longevity by 23 months, compared with non-book readers. This novel finding (exclude the pun) was independent of gender, education, health or wealth and showed that any amount of book reading increased survival.

As many of you will be aware a low calorie diet also increases longevity.
Could it be the pleasant distraction of reading, also distracts from snacking?