7. Breaking out of your comfort zone maximizes performance
Doing something outside of your comfort zone causes anxiety. This is not always a bad thing, as that makes you feel awake and energized to work at peak levels.

8. Challenging yourself is good training for dealing with life’s unexpected challenges
The more we train ourselves to see the value in every experience whether it is good or bad, the more resourceful we will be when faced with challenging and unexpected events, such as divorce, unemployment or the death of a loved one.