Its always useful to allocate sometime (as our usual work - without complaining NO TIME) to do some sports activities that are inetersting to you... (Badminton, Swimming etc). You may meet some people in a sports complex from other fields (Non - IT) and talk about something other than technology, which will relief you a lot from stress.

Doing Yoga and Meditation early in the morning before office hours help a lot for the whole day to work smoothly and challenge anything without stress..!!!

-Sen