A mind flooded with sensory impressions is overtaxed and tires easily. In fact, worrying consumes even more energy than physical tension. Mental fatigue ultimately leads to physical fatigue. So daily relaxation should not be seen as a luxury but rather as a necessity for keeping ourselves healthy and effective.
...and breathe away tension!
When you realise that your mind is tense, take a few minutes to breathe slowly and regularly and concentrate on your breathing. Yoga breathing exercises will make you aware of your breathing quite naturally. Rhythmical breathing brings physical and mental relaxation.