Correlation vs. Causation

To some people, the meme at left implies that they can extend their lives by reading more.  Perhaps in a few rare cases, that may be true.

However, it’s far more likely that there is no direct causation, and that, although reading is a good idea and is likely to make you a more well-rounded, intellectually curious person, that the actual reason that readers live longer is some other factor.  Perhaps readers:

Tend to take better care of themselves, refraining from smoking and consuming alcohol in excess.

Are generally better educated than the average person and are therefore less likely to have jobs that put them in direct danger.

Are more affluent than average and are therefore able to afford medical treatment when needed.

In any case, it’s important to understand that correlation doesn’t imply causation.