Put it in perspective

I've recently observed a close friend, getting completely freaked out and overwhelmed with work (as we do!).
He gets short, aggitated, angry, flustered, and it's affecting his overall health both physically and mentally.
We all have to do a job to survive. Some people develop a skill based on an interest, and some simply take whatever passes their way to make a buck.
Regardless of which category you fall under, chances are that at some point in your career you will be irritated and frustrated. How you handle this situation is up to you.
First of all, put into perspective what it is that you do. How does your job affect others? Affect the world? Mankind? Etc... and then decide if it's worth having a heart attack over.
Next, how do you handle situations?
I am living proof that you can change you habits. In my past life I would get bitchy, crabby, short, overbearing, and demand that my way was the right way... a "strong personality" if you will :)
Once I started to practice yoga, things changed for me. I learned how to breathe better, and by simply focusing on my breath in times of stress, I was able to calm myself down. The other thing I've realized is that you mind is a powerful tool that can work with you or against you.
Try closing your eyes and sitting still for 3 minutes and see what happens. If you don't practice this regularly, chances are your mind will take over and your thoughts will race like lightening through your mind.
I'm not saying that I'm "cured" or perfect by any stretch of the imagination, however I have changed myself and therefore know it can be done.
When you are going to face a stressful situation, pull yourself together and go into a quiet space for just a couple of minutes (I found that a bathroom stall works fine!). Close your eyes and breathe in and out through your nostrils, counting your inhale and your exhale to yourself. Try to even out your breath. So if your inhale is 6 counts, make your exhale 6 counts. If your mind and your thoughts take over, come back to the counting and focus on nothing but the numbers... if you can turn yourself inward even deeper, stop counting and simply follow your breath through your body. If you need one more helper, say to yourself, "These thoughts mean nothing to me".
This is just a start. A start to a calmer, better day in whatever it is that you do to make this world a better place.
Namaste.