Breathe

Relieve stress with quick, routine deep breathing. Pauses your chrome session for a few minutes with a reminder to breatheFew of us have time for yoga or meditation, and lots of us have stress. Breathe reminds you to do many simple and short deep breathing exercises throughout the day to keep you stress-free and healthy.

Breathe temporarily pauses your current chrome tab with a reminder to breathe. You can customize each breathing session to be as short as one minute, with reminders how frequently (or infrequently) you may like.

Breathe does not track your web activity. There are no ads, no cookies, and no login requirements. Just a simple app to keep you focused and calm throughout the day.
NOTE: The permissions state that the app accesses your data on all sites. What this means is the extension has permission to overlay the reminder on any site you're on (http, https, etc). I'm far too lazy to write the code needed to steal your data :)

Breathe is in beta and may have minor bugs. Please report any to the developer. Also, if you find it useful and wish to contribute to the developer, feel free to donate on the website :)

UPDATE -- Version 1.1.1:
Now with the option of shorter, more frequent breaths!

For feedback, donations, and bug reports, please go to:
breathe.site44.com