Internal stress and strain due to work pressure lead to the whole body muscles getting taut,and tense.
I have some ways which help me out but depends on situation to situation.
a)If I have spent a whole day on little physical exercise and lot of mental work leading to mental exhaution and mind becoming too tense,heart beating faster and getting a feeling of high Blood Pressure what I really do is go for a light walk in the park even if it is late evening after a light meal.Enjoy the slow breeze in the park and soothe my nerves down. I stop thing about the hapenings of the day and start visualizing I am on a holiday.This helps me calm down and I come back and straight go to bed and have a pleasant sleep.
b)If I have worked physically and dead tired with my mind racing like a horse then in the evening I usually put on some light soothing music, dim the lights of the room where I lie back on a couch and simply listen to music and sing along.This brings a calming effect and then I either read a good book or simply go to sleep.
c)If I did not have a good sleep in the night and have to go to work and eventhough feeling tired I have to carry on with the work in the office I come back mentally and physically dead tense,exhausted and unable to sleep eventhough I am tired then the only way is to sooth my nerves first by listening to music,chatting with my little children,watching TV (some soothing channels) or having a bath and then read some book which makes me fall asleep.I have been prescribed antidepressant (mirtaz or mirtzapine) a year back by neuro-physician which I had to take a few times when I couldn't sleep for a week or more at a stretch.
I am also in the process of changing my thinking not to get too attached to my work.I have been reading some good articles in the internet which has helped me immensely. I have collected them in my blog.
Hope they help you too.
sanjay