Working every day in front of a computer can cause some eyestrain and stress. Is important to have good light conditions and a bright and clear monitor to help reduce tiredness.

Recently I found an application for Mac called Time out who is helping me to rest my eyes and to take a break. Every hour a message stops my computer session and convince me to weak up and move (there is a button available to interrupt or postpone break session)

Interesting tool with some features, easy to install and best off all: is freeware.